Personally, I find Huckabee unappealing to the point where, if he's the GOP nominee I'll either not vote or consider voting for the Democrat (probably the former).
There's nothing endearing to me about a cross between a diet guru and a televangelist selling condominiums in Heaven, which is how Huckabee strikes me. The guy's so full of crap I can smell it wafting out his ears.
Furthermore, besides his bible thumping, the man's no conservative. His liberalism is quite apparent on everything but a couple of social issues.