Actually Iron Man and Nolan's Batman are nothing alike because of #1 I posted above. Iron Man is a known superhero out in the open, works both in the daytime and nighttime, and is government tolerated/sanctioned. Spiderman would be a much more apt comparison but The Amazing Spiderman may...
Two reasons.
1. Nolan's Batman is a vigilante working completely outside the law, in the shadows and people are still not completely sure if he is a good guy. The JLA is out in front, common place to see superheroes, work in the daylight, are generally considered the good guys and are...