I'd disagree that PLD has higher DPS than warrior if both are out of tank stance. Maim is good and PLD has no corollary.
Using DPS as a gauge can be misleading. While, on average, the difference between WAR and PLD tanking dps is negligible, the burst potential warrior has is unrivaled. In just over 20 seconds, a warrior has the potential to put out 6k damage if they pop every cooldown. Not really all that useful in most scenarios but it's nice to be able to down titan heart with 2 dps down.
