slow/slow for tanking. as far as i can tell, dual BP's is still the optimal tanking configuration for DW. off-hand fast weapons won't kill you, but a mh fast weapon considerably reduces the effectiveness of your weapon damage-based abilities. Right now I off-hand a red sword of courage for no other reason than i have yet to get an opportunity to replace it >.<
When the math behind DW tanking was first being fleshed out on these forums, I believe it was shown that warriors with a fast tanking weapon generate more parry-haste opportunities off a lv 83 boss than a frost dk DW'ing slow/slow. This is partly because 3 of the attacks in their rotation are either spells or not parryable (IT, HB, FS). I believe Satorri was actually the one who did the theorycraft. It follows, therefore, that if DW'ing is not a valid tanking style based on the number of parry-haste opportunities they generate, then the entire warrior class, ipso facto, is not valid for tanking either, given that they generate even more. you also can't use block as an excuse, since using DK mitigations on a cycle generally serves the same purpose. Better, actually, given the current state of block, and the proposed nerfs to DK's.No, it isnt.
Look at Satorri's post (#24). Double the parrys than when using a single weapon. Tanks get one shot as it is with just one parry landing at the same time as a melee swing and magic damange. I'm not willing to play chicken with the RNG like that.
If DW was more dps then 2h tanking and you could get near the expertise hard cap then sure.
since we all know warriors who are successfully tanking in 25-man raids right now, I think we can, once more, put this to rest. this is yet another example of how badly the parry-haste mechanic is exagerrated in terms of understanding its effect on DK tank survivability.