I'd go for Ed O and his completely inexperienced sidekick Minstrel. I'm really looking forward to the debate between Minstrel and Biden.
Judging from the constant cavalcade of women in Ed's avatars, I'm not sure anyone is as experienced as him. I did okay prior to getting engaged though.
When I took the candidates quiz in the Politics Forum, Dennis Kucinich and Mike Gravel were far ahead of anybody else.