I have multiple Ledger and Leto Jokers, and a Monaghan. But only two Batman figures: Bale's The Dark Knight and West's '66.
I always found the villains and non-Batman allies to be more interesting. Even back when I was collecting the Kenner figures.
I'm usually more into the heroes, especially Batman, but the Joker has always been an exception. I have a Ledger with no Bale and soon a Nicholson Joker with no Keaton Bats as yet. I'll probably pick this up when he releases.