Ugh. Come on. He's still flesh and blood. He's not an alien, like Superman. They should have stuck to the original concept: He's an alter ego of Bruce Banner when he gets pissed. He should be able to travel to other planets and conquer them. He can't be pissed 24/7. It's physically impossible. Also, why the hell hasn't anyone just killed him when he's Bruce Banner? No one can just point a sniper rifle at him when he's not looking?
I stopped reading comic books a while ago because I couldn't stand all these "alternate" universes, time travel, etc. They keep killing off superheroes and then bringing them back a few months later, as if nothing happened. They kill Batman, and then reveal that he was actually just thrown backwards in time.
It's so frakking aggravating.