totally agreed man. im not going to lie, before ledger was cast i thought he was a pretty average, bleh actor who just got lucky with that whole brokeback mountain thing (and couldnt STAND him during that). after it was announced that he was cast as joker, i actually got white flashes in my eyes. i couldnt believe it, like WHAT?!!?! are you kidding me??? a casanova joker?? i was actually upset. then i come on here, pretty much everyone said the same thing, but then we get a few pics of him in the makeup and all of a sudden ppl are praising him, without even seeing him yet.

to me, he was and is still a crappy actor and his role as Joker will prove only 1 of 2 things, that he is 1. still a crappy actor, or 2. he can actually act good. but he is no jack nicholson.
Everyone else has commented on you wanting to make every thread you go on a Burton VS Nolan thread, so I won't go there. I do have a few other points to mention, however.
First, you say that "pretty much everyone" was upset at Heath Ledger's casting as The Joker. Really? Most were surprised by the casting, sure, but having recently looked back at the thread where he was first announced as The Joker, the majority of responses were positive - "Not what I was expecting, but he's a talented actor, it could work," kinda posts. Yeah, there was negativity too (In the form of homophobic "Brokebat Mountain" comments) but far from "everyone" was against it.
Secondly, you assume that everyone who likes Heath Ledger as The Joker when they never liked him before are just blindly following Nolan. No. Heath Ledger wasn't in my mind at all when thinking of candidates for The Joker. But when he was cast as The Joker, I went out and did my research, watched a bunch of his movies, so I could come to an informed conclusion about his acting ability. And - gasp! - I concluded that Heath Ledger really is a damn good actor, who certainly CAN (whether or not he WILL remains to be seen) give a performance as The Joker that will blow us away. Nolan wasn't holding a gun to my head, I made that decision all by myself.
And also, just because nobody thought of Ledger for The Joker before, doesn't mean that he's a poor choice. It's the very fact that the casting is so surprising and out-of-left field that is one of it's biggest strengths. I always love seeing actors associated with "good guys" playing a villain for the first time. And to my knowledge, Ledger's never played a villain before. So that means, rather than retreading familiar ground, Ledger is going to give us something new and unpredictable.
And you complain about people praising Ledger's Joker before they see the movie? What about you? You end your post by absolutely denying there's any possibility of Ledger topping Nicholson. You say the only two possible outcomes for you after seeing the movie will be that Ledger 1) totally sucks, or 2) is okay but is no Nicholson. So, you're just as guilty of judging the performance before you see it.