Well raise with my own eye as an avatar, I hope you like it (it has been in my sig for a while but now when avatars are back it is where it truly belongs).
PC's winking avatar is pretty cool, but I vote for my fiery evil clown (which has just made its triumphant return yesterday) as the best overall. I mean, what's more captivatingly horrible and terrifying than an evil clown?
I have the coolest avatar ever! This is a counter by Fiery Dragon Productions, and is part of their Modern counter set. It's called "Morrus" and was drawn by Claudio Pozas from pictures of me.
Also, check out PC's new avatar, which is a counter called "Hacker Kulp".