I don't know. My current favourite is Rises, though that might be novelty factor. By this time next year, it might be back to being the Dark Knight.
I've never really liked what Burton did with the character. It's just never sat well with me. Schumacher's take was also pretty bad, but it felt like he was attempting to recreate the Batman he grew up on (the 60's tv show) while still working within the darker universe envisioned by Burton. I think he's unfairly saddled with the reputation of Batman & Robin, when most of the issues concerning that film were out of his hands.
So yeah, I'm undecided between TDK and TDKR, but tempted to vote for B&R because I know nobody else will.