Being the Grand Jester I feel obligated to respond to this. Also, having "the Joker" tattooed on my back sort of makes me the official expert on this subject.

Without getting too deep into the original and the modern origin of the joker I have to say the I've always liked the more pragmatic mass murderer over the comic character and it seems as the new style of batman movies started with "...begins" along with that picture will deliver something I will indeed enjoy.