Would hate to see the polearm mode go (they make for great shanks.. being so short you can practically point blank stab, with no funny business involved) but unless this game can support a triple-mode wep, I would have to say that the 1h alt mode simply makes more sense. As far as this game is concerned, they are too short to make decent polearms anyways. Sure, you could halfsword a longsword (or any sword) in real life, but in this game it is kinda pointless (other than the aforementioned stab). At least with a greatsword you have some reach on the polearm stab.