Two more days until the game's out. Judging on what we've seen from vids, previews, and leaked footage, which do you think is the most powerful?
Mercer has the advantage of experience, as well as the possibility that he's evolved well past the end-point of the first game.
Heller has far less experience, by comparison, but appears to have abilities Mercer never achieved in the first game. Such as the sonar ability, the Bio-Bomb, ect.