I have to say The Dark Knight Rises
, and it's not even really close.
I feel that the entire trilogy is pretty over rated (I still enjoy it, but I just don't get the same satisfaction from it that many people do that claim them as the best comic book movies ever), but this is really the only movie that had me walking out of the theater in awe.
The other two, I walked out thinking "Meh, those were cool I suppose".
This one tho...