I personally have to say that while i believe Burton did an outstanding job on the aesthetic of Gotham, and nailed the villians he used to near-perfection, his batman was a lil' too fond of killing people. (he has joker fall off the building at the end of "Batman" with no attempt to save him, he blows up an entire factory of goons at Ace Chem., and i also have a problem with the gatling guns on both the Batmobile and the Batplane) Although Keaton does have perhaps the best "batman voice" of all the movie versions...
I also have issue with th'fact that for years ('till the nolanverse) Batman couldn't move his head...they focused way too much on the "Batman's fighting guys with guns, he needs protection" and didn't just use the "he was trained as a ninja" part of his character...
The Nolanverse on the other hand, got a LOT closer to an accurate portrayal of Batman (with the exception of the Batmobile, and that gorram voice), but did almost offensively bad in the villian department (Ra's Al Ghul was nothin' like his comic counterpart, nor was the Scarecrow (who is my 3rd fave villian overall), and for all his fine work as the Joker, Ledger didn't do it perfectly either for th'fact of he had virtually no comedic side to him at all...he was just a guy that liked to blow things up or threaten you with knives....but i blame that less on Ledger (who did phenomally in the role) and more on the writers just not gettin' th'full scope of who the Joker was....
that bein' said if you merged the two (Burton's gotham and rogues gallery with Nolan's Batman), you'd have a damn-near perfect interpretation....
or, you'd have the animated series......add th'fact that you'd actually be able to kill people (really not possible in a cartoon for children)....
and, you'd have the Arkham games....aka "Batman finally done right"