I love the word "anathema". I really like the way it looks and sounds, and me being the person I am, the meaning just makes it that much better. She's also totally the coolest character in Good Omens, which never hurts.
I like "egress" too. I think that one's just fun to say, and I like the way it looks. I don't know why.
I have a few others, but it's like...2 AM. My brain shut off a while ago.