I have all 3 tanks at 60 and with slashing debuff up on dummy I do in the 900ish DPS as both DRK AND WAR. PLD not so far behind. The 3 tanks are balanced DPS-wise. The only problem is TP, especially for DRK. WAR now is getting Fell Cleave in its DPS rotation which means a free GCD with no TP cost every 5 abandon stacks and Equilibrium which restores 200 TP with 60 seconds CD. A WAR can do 15 min of non-stop DPS without running anywhere near out of TP and I think that's where the imbalance lies and it's tiny considering the fact that the current fights have a lot of downtimes.