Alan Keyes, Hutton Gibson, Roy Moore, Ralph Reed, Pat Robertson, Marilyn Musgrave, Tony Perkins, Rick Santorum, Jack Thompson or Don Wildmon

I would say the most likely choice would be Santorum or Moore, with Moore being the top choice given he wasn't just handed his ass in 2006.

They see Moore as a martyr and he would actually excite a lot of the theocons...  http://en.wikipedia.org/wiki/Roy_Moore