So now what I want to ask from the community is this: what exactly makes a map Terran/Protoss/Zerg favored and how exactly does it makes the map imbalanced?
I'll take a ladder map for example: Antiga Shipyard. People are saying that this map is Terran favored because of the high ground in the middle with a watchtower on top of it, also that your supposedly "fourth" is located just right below that high ground in the middle. If Terran at the very least occupies that spot, the Terran will have vision of the center, and it becomes very hard to secure the middle expansions since Terran can snipe it from above. This matters in TvZ because you really really need a fourth expansion when the Terran already has a third because as Zerg, you want to always be 1 base ahead from your opponent, and since the Terran can easily occupy the center and siege up on the high ground, it makes taking the center expansion very hard for the Zerg, which means the Zerg will have to expand somewhere else. And in this case, on the supposedly "fifth" expansion.
Also, since the map also has the shortest rush distance on the map pool right now (as far as I recall), this makes aggresive play from the Terran really favorable and effective.
I might be missing some points here regarding balance on the map, but since this is just an example I'm not going to bother adding all of the points that I know that makes this map "favored".
So, can you name the characteristics of a map (chokes, expansion locations, flanking routes and high ground positioning, etc.) that could break the game due to imbalance? And what race would benefit from that?