He's pretty much the only sane Republican left. I'd be surprised if there's anyone willing to stick as closely to the Constitution as he does. While I agree with him in many areas, I take issue with some of his views on homosexuality, abortion, the environment and immigration. But other than that, he'd be the best president in years.

But, like F3 said, he isn't electable. Americans just want more of the same for some reason.