It'll be interesting to see who the GOP pull out of the woodwork. Everybody is all "Jeb Bush! Jeb Bush!" but he has zero crossover appeal. This is also the problem with your Romney and Cruz's.
Chris Christie seems to be the best contender. Even armchair lib-labs like myself can get behind his no bullshit ethic. There's an everyman quality to him that I respond too even while I utterly disagree with his politics. I also like him because he's dirty in that old school teamster kind of way. "Oh, you're going tell me 'no?' Have a three day traffic jam, asshole." People say they want honest politicians, but I don't think they do.