I never liked Jack Nicholsons joker. I wasnt even born when it came out, and I was 2 when I Returns came out, so my first point was BTAS.
I watched the films when I was 7 or 8 for the first time and loved them.
But as I grew up, read comics and understood the character more, I just didnt like Nicholsons portrayal. Just something from him that didnt do it for me. Its hard for me to explain, he didnt seem... well I dont know. I think for me, Joker dancing to Prince (as much as I do love the artist who copyrights a colour), messing the paintings up, 'joker was here'... it just wasn't joker at all.
I always remembered joker as a complete cold killing maniac. No reasoning behind it. He wasn't criminally insane, he was such a tame character that take the make up off and change the colour of the suit, and it couldbe anybody.
Ofcourse, there was some funny bits from Nicholson (this town neeeeeds an enema!) But on the whole, I didnt like the whole, was a former mobster, got betrayed, fell into the vat, came back for revenge and thats about it. I just didnt get him. He wasn't a psycho, he wasn't someone who would randomly murder someone for fun, there was no crazyness about him. I mean, he obsessed over Vicki Vale for most of the film and wanted her but why? Ugh, im not explaining myself very well here am I!
Just didnt make sense at all, and there was no... connection between Batman and Joker. I dont mean, batman failing to save him from falling, but there was nothing there. come to think of it, theres only the Nolan films who actually puts connection between batman/bruce and his enemies.