Citizen's second statement gives him away.
citizenkane_ wrote: Though, with fancy elixirs and a FoD, warriors can tank Nav better so it seems. Higher magic resist or something, who knows.
I don't know if you've tried nav yet, but... it's 100% magic damage, and she has some interesting CC etc... That's one boss
which we prefer warrior tanks for, and even then, they needed a nav-specific spec. (magic resist rubies and might over magic, etc, etc) For other bosses though, such as Sarn, we prefer a paladin.
I'm not denying that warriors have an overall edge, I'm just saying pallys have their niche uses as well.