Should I re-roll my warrior?

[Daldaen]

Frontal Stun Immunity is not required to be a main tank.

Ogres do have the best stats. The size can be overcome with a Cobalt Bracer (shrink click) indoors and Ant Potions (20pp per charge shrink potions) outdoors. Also an AoN (skeleton illusion) fixes the looks issue if you intend to be a really high end tank with a lot of coin.

The top geared main tank in Rampage and Forsaken, the two most hardcore of guilds, are Dwarf/Half Elf I'm fairly sure - (Correct me if I'm wrong, Rampage may have geared out someone else that I'm not aware of.)

Warrior race really doesn't matter at the high end. Frontal stun immunity is a joke of an ability for a warrior, your aggro is just fine when eating 2-3second bash stuns. In fact the more you're stunned the less you can get yourself riposted on. Something more useful would be Iksar AC or Half Elf Charisma (Divine Intervention triggers). Troll regen has a slight benefit but not much at high end tanking. Everyone else's racial is rather useless. Warriors really shouldn't need to hide or sneak, you've got other classes more suited for those things or Invis clickies at the high end.