I don't know, I play as a shielder and frankly it's the throwers which worry me the most, second being archers. Then again, I use a heather shield with 5 shield skill which means not only throwers break it quite fast but archers shoot you from the slightest angle. The 2hs which worry me are the really good blockers, but eh, they deserve to win.
Most of the part about fighting a twohander is knowing how to attack in the first place, I see many shielders die in a, well, stupid way, counterattacking with the wrong swing, falling to feintspam, etc.