Mad ups to Tuetensuppe for helpin a fool out but
I loomed the swiss halberd before it got 4D mode. It has excellent speed for a weapon with that much reach and damage. Sure, it's garbage in a 1v1 duel but if you have a teamate to work with the 2D stats will tear shit up.
I understand where you're coming from, the whole reason you loomed it was the side swings, but it's still a solid weapon.
Svaerdstav is probably as close as you'll get to the 4D swiss. Poleaxes have similar damage but much less reach. If you can live without an awesome stab then glaive or naginata are worth trying too.