I legitimately believe that McCain is the best presidential candidate of either major party since Eisenhower. He had the ideal philosophy (a Republican who sometimes disagreed with the party) and a decent understanding of Washington.
I don't know if Goldwater would have been able to govern, but the rest would likely have been solid Presidents.
Yep. He was a fantastic candidate who ran in the wrong year and then made some serious blunders as things went against him. But he's far better than Romney (blew it due to his personality problems, never really seemed to want it) and Goldwater (never really in the mix). Dole was a great Senator and a mediocre candidate.
I don't know enough about Dewey to say.