Pld have a 540 potency dot (that follow an already very high potency riot blade) that can be used every 24 seconds -- on top of RA being higher potency than whatever war has by a mile, and FoF being on par with berserk overall.
I love how people are talking as if FC was doing 10k damage every time (or hell, 15k, whatever, why not, amirite ? ). Regular FC are at 4k max, thank you very much.
Also those Drk acting like if a 450 potency -- just 10% lower than FC mind you -- as an OFF GCD attack every minute was not something to consider.
It is just hilarious.
As others have said, things are pretty well balanced right now in term of DPS. Pld has a harder time navigating between stances, but has some crazy utility to compensate, which sound fair To be honest if War had to use a GCD to swap stances, Pld would be far and away the best tank currently. The focus on FC is great and all that but Pld got just as many shinies as War, and they are crazy good too right now. Drk is lacking in other areas -- utility, CD against physical, for example. In both cases, DPS is certainly not an issue when comparing tanks.