Are 2H weapons still a viable choice for warriors or is it just about dual wield and weapon/shield at higher levels ?
As Sojero stated it is the best option for DPS. Quite a few of our DPS discs do not effect 1hs weapons, and 2 handed stance option will put you in a position to get one rounded pretty regularly with it's negatives, so not a stance you want to use with any chance of tanking.