From what i've seen with a nearly equivalent sk & war is that a group with an SK will kill faster than a group with a warrior but if something goes wrong the warrior will outlive an SK.
I think the key point is what kind of target you're hunting.
If you're hunting where you might get a couple mobs and need the tank to get aggro on 3, 4 or 5 mobs while bard manages what mez they can, SK would probably win.
If you're trying to go knock out hunter achievements and go after the named mobs, a warrior would probably win out.
Thanks like I said I own both but SK is 93 and warrior is all set but want to better my group because I want to fight more then TDS
and while not game breaking, there are several utilities that an SK has (summon corpse, feign death, self invis) that can be situationally very handy.
lastly, in certain places, pull with pet is a blessing because it gets around weird line of sight geometry in a zone.
Having said all that, I still have a hard time putting my warrior away just because I'm an absurd fan of the dual wielding tank idea. If you have an attachment to one class or the other, play it and find other tools to offset the negatives.