Mitt Romney (Former Massachusetts Governor) 4

I think this is the strongest choice. If you can remember the days (pre GWB) when the Republican Party was known for it's stewardship of the economy and strong foreign policy, this would be a ticket that covered those two bases well. In McCain you'd have the Hawkish but trustworthy ex soldier with deep foreign policy experience, and in Romney, you'd have a shrewd businessman. If it were my party, this is what I'd be pushing for.