EPTHey I'm currently Platinum on ladder but I recently came second in a tournament in which I beat numerous diamond players and a Grandmaster protoss with the build presented in this thread (see replays section for the Grandmaster game).
This build primarily makes use of the amazing synergy of cloaked banshees supported by ravens and vikings in TvP. PDD and sniping observers makes this composition a nightmare for protoss to deal with and straight up kills protoss who just blindly make collossi. Also Hellions and marines are used as a mineral sink, for early defense and scouting throughout the game.
The Gameplan
The overall game plan is to be solid versus heavy early pressure and then use the tech advantage of going 1-1-2 to secure an expansion and start putting pressure back on your opponent. During the mid-game the plan is to harass and scout with blue flame hellions and mass a "Terran deathball" of marines, blue flame hellions, cloaked banshees, ravens and vikings of which the ratio of units depends on scouting info obtained. Once the deathball is reasonably strong you start denying the opponents third bases and if the opponent doesn't have the right unit composition to match you, then you can straight up go and kill him.
Build Order
+ Show Spoiler +
10 supply
12 barracks
13 gas
15 OC
16 marine, constant marine production
16 supply
(supply counts discontinued from here - keep making scvs nonstop)
factory at 100gas
2nd gas right after factory is built
Starport as soon as factory is finished
1x Hellion when factory is finished
Scout with hellion, scan if the hellion doesn't get up the ramp and build bunker if needed
2nd Starport at next 100gas
From here on build depending on scouting information
12 barracks
13 gas
15 OC
16 marine, constant marine production
16 supply
(supply counts discontinued from here - keep making scvs nonstop)
factory at 100gas
2nd gas right after factory is built
Starport as soon as factory is finished
1x Hellion when factory is finished
Scout with hellion, scan if the hellion doesn't get up the ramp and build bunker if needed
2nd Starport at next 100gas
From here on build depending on scouting information
Responses to Protoss Builds
+ Show Spoiler +
4gate: Build a bunker, keep marine and hellion production up, pull a handful of scvs for repair and build up some banshees and research cloak. When he backs off or you feel you have enough marines and hellions, cut marine/hellion production briefly and get a cc up in base. Cloaked banshees can just straight up win the game but you'll also have a big economic lead so you pretty much have the game won.
3gate Robo: Pretty much the same response as with the 4gate but I prefer to follow up with blue flame hellion harass after expanding as they will have observers for cloak. They won't have as many stalkers compared to the 4gate so you can also just go and kill them with the marines/hellions/viking/raven/banshees once you have banshees and enough energy for one or two PDDs.
3gate Stargate: This is a lot easier to hold with the current build than previously as you won't need as many vikings. Once scouted make sure you have your bunker up, build a couple vikings and patrol the cliffs of your base where they could warp up using a pylon and void ray vision. Pull a handful of scvs for repair and target fire the voidrays down when they attack. Research cloak and once your safe cut marine/hellion production to get a cc up in base.
DT rush: Build a raven and even if it is hidden you should get a raven out if you don't see some all-in coming to start saving energy up. Pretty much it is an instant win if they DT rush as you can expo safely, get cloak and easily win.
3 Gate blink stalker: Probably the hardest to hold, particularly if proxied and you don't scout it. If scouted, make sure you have a bunker up and keep up marine/hellion production and build banshees and pull a lot of scvs to repair. Try to make him fight near your bunker because they will kite your marines all day otherwise, once you've defended research cloak and cut marine/hellion production so you can expo. If unscouted then pull all your scvs and fight near the bunker, if you were making a raven then cancel it and make banshees, also build marines and hellions.
Any FE: If you scout a FE of any sort with your hellion then expo yourself by cutting marine production briefly then depending on whether they have detection or not tech to cloak or blue flame for harass. Stay active with scouting and show them how op terran is lategame.
3gate Robo: Pretty much the same response as with the 4gate but I prefer to follow up with blue flame hellion harass after expanding as they will have observers for cloak. They won't have as many stalkers compared to the 4gate so you can also just go and kill them with the marines/hellions/viking/raven/banshees once you have banshees and enough energy for one or two PDDs.
3gate Stargate: This is a lot easier to hold with the current build than previously as you won't need as many vikings. Once scouted make sure you have your bunker up, build a couple vikings and patrol the cliffs of your base where they could warp up using a pylon and void ray vision. Pull a handful of scvs for repair and target fire the voidrays down when they attack. Research cloak and once your safe cut marine/hellion production to get a cc up in base.
DT rush: Build a raven and even if it is hidden you should get a raven out if you don't see some all-in coming to start saving energy up. Pretty much it is an instant win if they DT rush as you can expo safely, get cloak and easily win.
3 Gate blink stalker: Probably the hardest to hold, particularly if proxied and you don't scout it. If scouted, make sure you have a bunker up and keep up marine/hellion production and build banshees and pull a lot of scvs to repair. Try to make him fight near your bunker because they will kite your marines all day otherwise, once you've defended research cloak and cut marine/hellion production so you can expo. If unscouted then pull all your scvs and fight near the bunker, if you were making a raven then cancel it and make banshees, also build marines and hellions.
Any FE: If you scout a FE of any sort with your hellion then expo yourself by cutting marine production briefly then depending on whether they have detection or not tech to cloak or blue flame for harass. Stay active with scouting and show them how op terran is lategame.
Mid-Game Production
+ Show Spoiler +
Once you take your 2nd base you will want your 3rd and 4th gas quickly so that you can get a third starport up, two armories for double air upgrades and so that you can get blue flame and cloak if you haven't already. Whether you reactor or tech lab your third starport depends on what the scouting info you have, from hellions, banshee harass or viking flybys, on the protoss. By this point minerals aren't so important so if they're blocking all your scouting, don't hesitate to scan.
The biggest things you are looking for when scouting in regards to production are stargates and a Templar archives. With stargate tech, you simply need to get more vikings into your composition, using one of your starports with a reactor is usually enough unless you miss the stargate for a while and need to pump out a lot of vikings to catch up, in which case u switch to all viking production for a bit. If Templar archives are scouted or even if you scout a twilight council, you should to engage soon whilst dropping a ghost academy and perhaps a second barracks for ghost production, see the Mid-Late Game engagements section for dealing with armies with HT in them.
Past two base you basically just want to get as much gas as you can to add more starports and tech to BCs if you like. However I find that the only time I get BCs is as a diss because they are not as mobile as the rest of the army and vikings and banshees deal with ground and air much better. Also past two base you may want to get more factories for more blue flame hellions as a mineral sink.
The biggest things you are looking for when scouting in regards to production are stargates and a Templar archives. With stargate tech, you simply need to get more vikings into your composition, using one of your starports with a reactor is usually enough unless you miss the stargate for a while and need to pump out a lot of vikings to catch up, in which case u switch to all viking production for a bit. If Templar archives are scouted or even if you scout a twilight council, you should to engage soon whilst dropping a ghost academy and perhaps a second barracks for ghost production, see the Mid-Late Game engagements section for dealing with armies with HT in them.
Past two base you basically just want to get as much gas as you can to add more starports and tech to BCs if you like. However I find that the only time I get BCs is as a diss because they are not as mobile as the rest of the army and vikings and banshees deal with ground and air much better. Also past two base you may want to get more factories for more blue flame hellions as a mineral sink.
Mid-Late Game Engagements
+ Show Spoiler +
You're composition should consist of marines, blue flame hellions, cloaked banshees, ravens and vikings(the amount of which depends on if they went into stargate tech) by the mid game.
When engaging a gateway/stargate/robo protoss army you essentially want to throw down some PDDs right before engaging and then pretty much let your vikings and ravens clear out any observers and then your cloaked banshees will force a retreat or they will sac their whole army. If they retreat you can kill a lot of them with your fast banshees and unless they have a lot of cannons then you can press the advantage by sniping any newly created observers. These engagements you should win easily and require little micro apart from making sure your pdds are well placed and your ravens don't get sniped.
When engaging a protoss army with high templar(a lot easier now with the energy upgrade gone) the micro really decides the battle. If you scout them going high templar tech then you should attack fairly soon before they have a ridiculous amount of storms to use on your army. Preventing heavy feedback damage is easy, precloak your banshees to keep their energy low and ensure you dump your PDDs before engaging. Storms are the real worry, I usually pre split my banshees before engaging and then during the engagement move small groups of them at a time. Without the amulet you can now follow up this attack with an attack on their main without having to worry about warp in storms. If the game continues on however for whatever reason you will need ghosts for emp.
When engaging a gateway/stargate/robo protoss army you essentially want to throw down some PDDs right before engaging and then pretty much let your vikings and ravens clear out any observers and then your cloaked banshees will force a retreat or they will sac their whole army. If they retreat you can kill a lot of them with your fast banshees and unless they have a lot of cannons then you can press the advantage by sniping any newly created observers. These engagements you should win easily and require little micro apart from making sure your pdds are well placed and your ravens don't get sniped.
When engaging a protoss army with high templar(a lot easier now with the energy upgrade gone) the micro really decides the battle. If you scout them going high templar tech then you should attack fairly soon before they have a ridiculous amount of storms to use on your army. Preventing heavy feedback damage is easy, precloak your banshees to keep their energy low and ensure you dump your PDDs before engaging. Storms are the real worry, I usually pre split my banshees before engaging and then during the engagement move small groups of them at a time. Without the amulet you can now follow up this attack with an attack on their main without having to worry about warp in storms. If the game continues on however for whatever reason you will need ghosts for emp.
Replays
+ Show Spoiler +
Replay: Platinum Air Terran vs Grandmaster Protoss 1
5th round of the tournament I get pitted against a grandmaster protoss and he responds to my build by doing pheonix harass and building up collossi, when we engage I crush his army and take the game.
Replay: Platinum Air Terran vs Diamond Protoss 1
The first round of the tournament in which there was a lot of lag for both players, theres a couple big engagements and my composition crushes his army in the final engagement.
Replay: Platinum Air Terran vs Grandmaster Protoss 2
A practice match against a grandmaster protoss and he gets pretty pissed off when he loses lol.
Replay: Platinum Air Terran vs Diamond Protoss 2
The protoss goes double stargate carrier.... XD
Replay: Platinum Air Terran vs Diamond Protoss 3
Practice match verse a diamond protoss friend of mine.
Replay: Platinum Air Terran vs Diamond Protoss 4
Another practice match against my diamond protoss friend.
Replay: Platinum Air Terran vs Diamond Protoss 5
I hold off a 3gate proxy stargate even though I didn't scout the proxy.
Replay: Platinum Air Terran vs Diamond Protoss 6
The protoss does a 2gate pheonix expo.
Replay: Platinum Air Terran vs Diamond Protoss 7
Diamond toss goes chargelots vs air...
Replay: Platinum Air Terran vs Diamond Protoss 8
Diamond toss does a 3gate fe with some pressure.
Replay: Platinum Air Terran vs Diamond Protoss 9
Diamond toss goes for a pheonix/gateway composition but still gets stomped
Replay: Platinum Air Terran vs Platinum Protoss 1
2nd round of the tournament versus a friend of mine from Ascension Gaming, who knew my build but didn't get high templar fast enough to stop me.
Replay: Platinum Air Terran vs Bronze Protoss 1
3rd round somehow a bronze player has made it that far. He heard of the games I had played earlier in the tournament and did a hilarious fast forge, twilight council, 1gate build so i rallied units to his base and won.
(I had to manually upload these so let me know if there is any errors.)
5th round of the tournament I get pitted against a grandmaster protoss and he responds to my build by doing pheonix harass and building up collossi, when we engage I crush his army and take the game.
Replay: Platinum Air Terran vs Diamond Protoss 1
The first round of the tournament in which there was a lot of lag for both players, theres a couple big engagements and my composition crushes his army in the final engagement.
Replay: Platinum Air Terran vs Grandmaster Protoss 2
A practice match against a grandmaster protoss and he gets pretty pissed off when he loses lol.
Replay: Platinum Air Terran vs Diamond Protoss 2
The protoss goes double stargate carrier.... XD
Replay: Platinum Air Terran vs Diamond Protoss 3
Practice match verse a diamond protoss friend of mine.
Replay: Platinum Air Terran vs Diamond Protoss 4
Another practice match against my diamond protoss friend.
Replay: Platinum Air Terran vs Diamond Protoss 5
I hold off a 3gate proxy stargate even though I didn't scout the proxy.
Replay: Platinum Air Terran vs Diamond Protoss 6
The protoss does a 2gate pheonix expo.
Replay: Platinum Air Terran vs Diamond Protoss 7
Diamond toss goes chargelots vs air...
Replay: Platinum Air Terran vs Diamond Protoss 8
Diamond toss does a 3gate fe with some pressure.
Replay: Platinum Air Terran vs Diamond Protoss 9
Diamond toss goes for a pheonix/gateway composition but still gets stomped
Replay: Platinum Air Terran vs Platinum Protoss 1
2nd round of the tournament versus a friend of mine from Ascension Gaming, who knew my build but didn't get high templar fast enough to stop me.
Replay: Platinum Air Terran vs Bronze Protoss 1
3rd round somehow a bronze player has made it that far. He heard of the games I had played earlier in the tournament and did a hilarious fast forge, twilight council, 1gate build so i rallied units to his base and won.
(I had to manually upload these so let me know if there is any errors.)
This is my first guide, so if I'm missing anything or I could improve something, please let me know.
I've based my current TvP on this precise game as well and it does work quite well.
I've read your thread before and it did help refine a couple of points for me... but I'm not sure I want to see the metagame change with this as protoss might become aware of the build and start playing adequately against it (which they aren't atm!). it's fun to enjoy easy wins at the moment. 
