If McCain picks either Cantor or Romney, I’ll be a happy guy. They would both becoutstanding selections, although I think Romney would help the ticket more, especially MI.
Debating the merits (or lack thereof) of Romney has proven pointless, but I agree with the posters who note that, regardless of merits, it is undisputed many conservatives despise Romney and may very well not vote for a ticket that includes him.
This is true of many of the other also-rans: Huckabee, in particular.
Hence, the wiser decision (in this case) is to look outside those than ran for the nomination.
Cantor is such a guy, and is damn conservative to boot.
Name recognition will be solved about 10 minutes after he announces.