I am for Allen. He has got grass root support he may not realize. Jeb? I'd vote for him over any dim. Can't say the same for McCain. He is an RINO opportunist.
If it came down to McCain getting the nomination (a veritable longshot IMHO - I sincerely doubt he will get the party's nomination) I'd support him, but right now, I'm fully supporting Allen at this juncture.