I can't think of many melee weapons that you can't improve by attatching it to the end of a pole.
It's a shame that a lot of games don't feature polearms as a weapon choice. For me one of the failings of Dragon Age was a bizarre lack of polearms in that medieval world, which was one of the main reason I restarted the game many times trying to find a character build that I liked... but if I'd been able to weild a Halberd I would have probably stuck with my original Human Noble and have completed the game.
Never mind, Mount & Blade and the Dynsasty Warriors games have polearms a plenty, which is probably why I've spent more hours in those games killing dudes with poles than all my other games combined.
I also loved how in True Crime: NY, once you leared the Chinese Staff fighting style you could weild any pole like a pro, not just weapons but objects like parking meaters and broken lamp posts.