Walker all day every day.
I would probably vote for the Dem nominee over Christie (providing the Dem is not the witch, in which case, time to go Libertarian/Constitution).
Why? You seem to be pretty conservative, and Christie is obviously going to be more conservative than whomever the Democrats nominate.
Chris Christie is a fat corrupt power-hungry bastard, it would be irresponsible to let him near any sort of Washington D.C. power of any kind. At least he can't do anything to me in Joisey.
He and Clinton are about equal in my eyes, and at least Clinton would have a Republican House to hobble her.