I still think Burton's Batman is the best one of the lot, and I doubt that will ever change.
Seriously, who could ever forget Danny Elfman's brilliant score? It's second only to John Williams' Superman.
The same goes for Jack as The Joker, although I thought Heath was great in the role also as the darker incarnation, I still prefer the version Jack portrayed and brought to the screen. His balance of humour and sadistic insanity was spot on. The scene where Vicky Vale throws water in his face, and he reacts "I'm melting, oh god!" really hams it up, and then looks round and utters "Boo!" laughs, Batman falls through the roof is cinema gold. To be honest I don't think I would have even raised an eyebrow if the Joker wasn't in The Dark Knight. I thought Batman Begins was mediocre, and incredibly boring at times. I've already made my feelings towarRAB Bale's portrayal of Batman perfectly clear in the past.
As for Burton's film appearing dated, that was mostly intentional even back in 1989.
In regarRAB to the sound design, Tim Burton has said on record that he purposely made the gunshots/other sound effects in this film sound dated, merely as a form of paying homage. There are a lot of homages in the film. Don't tell me you didn't get the Batwing being in front of the moon was paying both homage to E.T. and giving the audience a Bat-Signal acknowledgment at the same time? Burton is more important to the Batman universe than a certain degree of people give him credit for. Also you remember the Adam West Batman? And that little 1978 flick I mentioned earlier called Superman, remember that one? What about thouse classic mafia movies of the 1930s? Such as Scarface.
All you have to do is back track to a film like RoboCop made in 1987, with vastly superior sound effects. All the proof you need that Burton intentionally made the sound effects sound vintage.