And pretty much any other cat-mouse combo from my childhood. Except Elmer Fudd and Yosemite Sam. Because humans are just plain dumb. And evil.
Also, any book (I recently finished Red Dragon) where you actually dive into the psyche of the antagonist and develop a sense of sympathy for them, where you can actually root for them when good things happen to them.
Oh and the MOTHER smurfING TRIX RABBIT. Jesus CHRIST. You could argue that he's not the "bad guy" but not even the chew toy-iest of butt monkeys from other shows go through what he goes through. I used to come up with fantasies about that poor rabbit slaughtering those kids. It's cereal! You got a whole damn box, you can share!