In my crusade to get all the mounts possible, I have been struggling to get the ones of KING REST and UNDERROT, mostly because no one want to take my 410 mage in a PUG. So instead of complaining, I leveled a Prot Warrior. She is now 360.
(I was told repeatedly on trade chat that, oddly enough, ilevel is almost always the ''go to'' stat for tanks, as higher ILEVEL, more stamina)