I voted for other, and I pick anyone-who-isn't-one-of-those-four. I don't think McCain is in second place on the Republican side though. Probably Romney. Who I also wouldn't want to win..!
If I had to pick one of the people who seems truly honest, yet has no chance whatsoever, it'd be Kucinich on the Dems side, or Ron Paul on the other.
If I had to pick between Hillary and Guliani, the lesser of two evils is the one with a brain apparently still intact, I guess. Mrs Corporate Shill herself, Hillary. Guliani might have had some chance of having my support based purely on the opposition if he wasn't busy making baseless/false remarks and constantly spewing 9/11, pretty much proving to me that he'll be worse than another Bush.