Heehee! I loved those shrunken heads! I thought they were hilarious! I used to despise Snape, but now I see him as such a deliciously conflicted character that I really like him - plus I think that Alan Rickman did a great job playing him.
I must have a thing for dark characters because the character I love that everybody hates... Bellatrix. She was just so horribly, unrepentedly evil, and a bit crazy, that she made a great antagonist. Plus I kind of liked her hair, very 'mad scientist' *g*