I can't grasp Nicholson's Joker for love nor money.
He's just completely random in his insanity.
Heath's Joker was a man attempting to destroy society's rules and human decency. Because it was all a joke.
As for the new Joker?
I'd like things to be like Jack's absurd randomness.
It's what made him unpredictable.
He has to see life as a show, and he's the entertainer.
You know the song, Always Look On The Bright Side Of Life?
Listen to that - as I believe that sums up the Joker perfectly and beautifully