I don't completely understand what your trying to say but it sounds like your chances of winning are 25% and thats really good compared to other maps. But thats not based on the layout of the map, its more of the skill of the players.
If there is a rusher on kingdom, Aztec or instruments, they don't bridge to you they bridge to mid, then they go across your bridge, there is a 1/3 chance of being eliminated by 1 rushing team, no one has a neighbor to rush first, it is open ended, bracket systems make the game go faster, x gets y, a gets b, then winner of xy gets winner of ab, it is a bracket system, like a ladder in a tournament, you kill one person, then you are better then them, the other people rush the other team, they are better than them, then you fight, and the best one wins. Sorry if the first one was confusing, also sorry if this one is more.