Live action:
Batman Returns - Not really a Batman film, but still the best movie with the word Batman in the title. Classic Burton, if there ever was one.
Batman '89 - Not as good as above, but silly and fun none the less.
Batman '66 - I prefer the really good chapters from the TV show, but it’s an overall decent effort.
The Dark Knight - Far too stuck up its own ass, albeit not as incoherent as
The Dark Knight Rises - No, it does not work as an arthouse film, either. It’s too stupid for that.
Batman Begins - I’m always bored to tears with this one.
Batman & Robin - Most people agree it’s too silly, I think it’s not silly enough.
Batman Forever - It’s all over the place. I’d like to see the rough cut, though.

Animation:
Mask of the Phantasm - Need I say more?
Batman & Mr. Freeze Sub-zero - Arguably the best movie with Mr. Freeze in it, if that counts.
Mystery of the Batwoman - Not so much a mystery, but what can one do about it?
Batman vs. Dracula - Absolute horseshit. Can remember anything from it, other than Alfred looking bored.