Actually I like the humor in Batman Begins/The Dark Knight...it's sharp and witty and it doesn't completely cut the tension from the serious stuff.
A few good ones:
Alfred Pennyworth: I suppose they'll lock me up as well. As your accomplice...
Bruce Wayne: Accomplice? I'm going to tell them the whole thing was your idea.
Bruce Wayne: What about getting back into the plane?
Lucius Fox: I'd recommend a good travel agent.
Bruce Wayne: Without it landing.
Lucius Fox: [
smiles] Now that's more like it, Mr. Wayne.
Lucius Fox: Let me get this straight: You think that your client, one of the wealthiest, most powerful men in the world, is secretly a vigilante who spends his nights beating criminals to a pulp with his bare hands. And your plan is to blackmail this person? Good luck.
I didn't like the humor in Superman Returns which ranged from lame to demented:
Having one of the dogs eat the other, or suggest Lex wants to eat the surviving dog.
How was that funny? It's more disturbing...
Lois: "I've done Superman already."
Really?
Rest of the humor was taken from Superman: The Movie