I have to speak up, too. I've said it before a few times on these boards but here I ago again: it never ceases to amaze me when I see people trying to call Jack's Joker "campy."
I mean my God, has anybody counted up the death toll lately?
1.) Thomas and Martha Wayne
2.) Lt. Eckhardt
3.) Carl Grissom
4.) Antoine Brutali
5.) Vinny
6.) The people he killed with the cosmetics stuff, all over the city
7.) ALL of the patrons of the Flugelheim Museum, excluding Vicki Vale
8.) Alicia, indirectly (he scarred her and she killed herself)
9.) All the people he gassed at the parade
10.) Bob the Goon
Not to mention the fact that he felt the need to "improve" all the art at the museum - except the more macabre stuff. He loved Vicki's photography of the Corto-Maltese War, hated all the glamor stuff.
Are we keeping track? Jack's Joker was a nihilistic bastard who believed that everything was one big joke. He had always appreciated beauty and the finer things until his own looks were spoiled - then he chose to celebrate ugliness - or rather to celebrate the fleeting, temporary nature of beauty. To show that the things we all hold dear can be taken from us. That the more valuable something is to you, the more fragile it also is.
Which is, let's be honest - Joker in a nutshell. It's a flawless representation of the character.
I see Ledger's Joker, thus far, being an equally brilliant performance - but I feel no need to tear down Jack's work in order to build up Ledger.
In fact the thrust of what Caine said (excluding the rubbish about campiness) was correct: you wouldn't want to follow Jack anywhere unless it's a night club. I've been saying all along that whatever Joker they cooked up for TDK would have to be unlike Jack's Joker. Not because there was anything wrong with Jack's Joker, but because there was NOTHING wrong with Jack's Joker - and it's not worth telling a Joker story again if you can't come up with something different.
So TDK Joker will be different from Jack's. It looks like we're getting a less refined, less foppish version of Joker (yet Joker has always been refined and foppish, no?) but the concept of Joker as a nihilistic bastard who sees everything as one big joke - who is not intimidated by anything - who just wants to make everybody else as miserable as he is... well, that concept seems to be as true of Heath's Joker as it was of Jack's.
So why make comparisons? Why not just sit back and enjoy the show?