Not at all. Excuse my language, but I think will COMPLETELY fuck up the second. For some reason playing as a Big Daddy just seems cheap. It seems as if people liked the idea of a Big Daddy, so some idiot person at 2k decided, "WAIT! More people will buy it if you play as a Big Daddy because people like them." I know this probably won't make sense to most of you, as I find it hard to express my thoughts on this game, but I'll finish with this:
Whoever decided that the player character in Bioshock 2 will be a Big Daddy deserves to be shotgunned in the face.