Oooh hard one.
Between the DC duo and Disney's SS/Richards for me.
In terms of raw power and smarts, its SS/Richards. In terms of prep and pure sex, Superman and Bats.
Overall, if there's some alien monster bitches wanting to eff up Earth right now, I'd want Silver Surfer cause he is more powah.
If normal/Real life Earth, prolly Supes/Bats cause they can relate to humans more readily or something.