Who's the greatest mad scientist of all? Here's your chance to vote, in the io9 Mad Scientist Smackdown! A battle of wits, weird inventions and pure crazy. First up: who'd win in a battle between Walter Bishop and Reed Richards?

The winner of today's brawl will take on a new contender tomorrow, and so on, until we crown a new victor on Sunday. Please feel free to suggest more contestants in comments. Just please, no Summer Glau!