The one Republican I can think of who everyone likes (sad state of affairs) is Paul Ryan.
Mitch Daniels would also be a good choice, though perhaps not with that 'wow' factor (putting it mildly). The other governor choice is, of course, the 2nd universally popular Republican (I have a bad memory): Scott Walker.
As you said, Gov Daniels or Gov Walker.
Ryan is highly regarded
Sen DeMint?
Gov McDonnell?
Alan West is my favorite. If Called, he will do it.
Of course Sarah comes to mind Anybody considered a true outsider like TJ Rodgers from silicon valley? Steve Wynn, a man who can walk the walk. General Petreus could govern. So could General McChrystal (fire the man who fired him) Brokered convention sounds good to me!!! I also like Ken Cuchinelli (sp) Virginia AG
What would be so bad with someone like Ted Nugent?