Dark Dance is NOTHING like Bulwark. Hell it doesn't even compare to Rampart really, because Dark Dance is RNG, Rampart is constant reduction throughout it's duration. (We all know you're not going to dodge a tank buster so c'mon now)

And as far as Drk vs. War DPS, War pulls ahead as Main Tank still.

Not entirely sure in an OT situation, I myself have reached 600 DPS without Grit while MT even, but that only lasts until I run out of TP, which is incredibly quickly when you're using Blood Weapon. With War offensive buffs (Their better OT utility aside), and their new way to restore their TP (Which a Drk has absolutely no way to), I'm fairly sure Warrior will pull much further ahead in the long run.

As is, Drk offense is 1 big burst until you run out of TP. A burst that a Warrior can likely do better simple due to their own damage buffs, while still maintaining DPS outside of the burst without having to sit on their butt waiting for their TP to regen for as long as a Drk does.