Tanks, please use strength gear.. :(

[Erit]

Str gives all the tanks extra damage but Warriors are the only one of the three tanks that get massive defensive returns from the added attack power i.e. 30 seconds of Bloodbath, Inner Beast, Storms Path, Eqilibrium, Berserk + all of those skills.

DRK doesn't have as many self healing options as the warrior so I can understand a DRK opting for more VIT gear. Same goes for PLD.

If you're wondering, I use 3 Vit / 2 Slaying on my warrior and paladin.

VIT is still a detriment for Dark Knights due to Living Dead. Enough VIT to not be mistaken for a DPS, and then as much STR as you can hoard after that is the optimal setup, especially in the context of AoE tanking. I'll see your Warrior Overpower spam with Bloodbath and Vengeance on, and raise you Blood Price plus alternating DA>AD and Unleash spams with DP weaving. Assuming all other variables normalized, methinks that situation works out to about the same amount of effort for the healer to carry you through, but I'll defer to the judgement of the people who know how numbers work on that.