Blaze Miskulin of iO9:
Watching them back-to-back, the difference (and why Marvel is so much better) is blatantly obvious: Marvel is about the characters, DC is about the epic story. The problem is: Epic is nothing without empathy.
I think the same goes for why Fox's core X-Men movies have been so gotten so much praise from critics and fans then any of Sony's Marvel movies (Spider-Man, Daredevil).
Disney has been more methodical in the construction of their cinematic universe. They gave each character's origin story the breath in a single film before bringing them together.