Dual Wield vs 2 hander? Also taunt

[pijan]

Hit 22 on my warrior, and I'm not sure what I should be using. The damage cap went up to 60 for me so 2 hander feels nice, but hard to tell if it's actually more damage or not.

Weapons would be :
Staff of Battle
Frostbringer
Venom Axe
that 11/22 pitchfork thing.

Also have some money saved up as well if there is another weapon that I should be looking out for to bring that hot hot DPS.

On a side note when does taunt actually start to work with some consistency?