While I'm not huge on Miller's recent Batman work, I did enjoy his stuff in TDKR. His take on Batman was an amazing thing, and psychologically realistic, Batman as a tortured and disturbed soul, who's not really in the joking mood.
But heres my main beef...Keaton and Kilmer used it too much in their characterization's, which made them kind'a boring and Bale didn't use it too much, which made him seem 'fine'. Bale's take is a less disturbed Bruce/Batman, you see him make jokes and smile.
And it all boils down to Clooney...a BATMAN who is all cheerful and makes one liners, smiles at charity events....want to see that again?