I have no problem believing that he did snap I just don't believe that a little speech from the Joker would have convinced him to go after Gordon intstead of the guy who f**ked his face up and killed his girlfriend...which was obviously the Joker himself.
You either believe that hospital scene or you don't and I didn't.
The joker is just saying he isn't the head honcho behind it all, and two-face wasn't going after Gordon he was convinced to go after Marino....but when he went to Maroni he found out that people in Gordons unit that he told Gordon were corrupt..were well, corrupt, therefore pushing him off the deep-end, and by that time he realised everything he believed for..was well, not something he believed for anymore...hence why the people of Gotham deserved more than the truth...
Anyways, I preferred the TDK fight scenes (Laus building, chase, at the party, and the final scene with joker) to be much more enjoyable than the ones in wolverine, now a days in fights I find everything to be over choreographed, it lacks a sense of reality that I found in TDK, and even TDK was a little far fetched at some points.
Anyways, I dont at all feel that TDK spoiled other comic book movies..I loved ironman for what it was, I loved the first spider-man for what it was, punisher 2004 i liked a lot, and for the respective heroes I always found them to capture a lot of the aspects of the characters that I loved, and well, a spider-man movie with as much drama as TDK to me would be terrible...an ironman with as much death as the punisher would be terrible..I dont necessarily think TDK spoiled anyone, it just pushes to really capture the characters on screen for what they are, and not who people think they are.