I think he's the best option behind Ron Paul but nobody seems to give a fuck about him. They'd rather vote for Mitt Romney or Ass Juice Santorum. But in the end it doesn't really matter because I'm sure that Obama will win the election anyways.
If any of those five, well not Bachmann anymore but I would vote for Obama. I would take Huntsman over Paul because of foreign policy experience and his tough stance on lobbyists and corporate welfare.