Joking Around With Lex Luthor

Action Comics #897

I recently read Action Comics #897, where Lex Luthor is headlining until the milestone 900th issue when Superman is supposed to return to the title. 

In Luthor's quest for the Black Lantern energy (see: Blackest Night), he has to visit Batman's arch-nemesis, The Joker, in prison.  What results brings out the best of Joker.  He's comical, yet cunning.  He's a smart-ass, yet sedate.  He's not the maniacal Joker we're used to seeing in the Bat titles.  Paul Cornell writes the Joker as if he has a real sense of humor, a trait sorely lacking in other Joker appearances.  He is not only The Joker, he's a joker.  After reading this interpretation of the Clown Prince of Crime, I would love to see a mini-series featuring the Joker, with Paul on writing chores.