Carver ftw!
Carver had truly invulnerable skin (even Wolverine's claws couldn't cut him), he seemed to have superhuman stats (he laid out Spiderman), and he had his own version of claws (that seemed unbreakable too since Wolverine couldn't cut through them).
Finally a cool Morlock and then Marvel goes and 'kills' him off (I"m not convinced he's dead).