Raid tanking = Warrior. Defensive, higher skill caps, better armor.
Group/Leveling tanking = SK. Snap aggro for very low mana cost.
DPS = Warrior. Dual wield, higher skill caps, better offensive disciplines.
However, there is nothing in Kunark that cannot be tanked by a SK, but a Warrior's defensive discipline makes it easier and
midnight mallets cover a Warrior's lack of snap aggro. With Velious being the final end-game (as far as this server's intended timeline looks like for now), Warrior's will really pull away as far as tanking during the Velious era. There are some mobs, like Statue, Idol, and AoW, that are just untankable without defensive, and the likes of AoW was tanked by charmed NPCs before he was tanked by Player Characters.