The Joker is a touchy subject because no one seems to understand this character.
One person who understood him is Ed Brubaker in his
Gotham Central.
I think that Bill Finger nailed it when he first created the Joker but it seems that he has been misunderstood since. Ed Brubaker has managed to to capture the essence of Finger's Joker in his Gotham Central and made it his own.
