Pole weapons are, of course, the most powerful, however, I think they're overrated. The most powerful pole weapon I've found is the magic halberd (damage 18-5). However, it's a two-handed weapon which, in my opinion, is an unforgivable disadvantage. My primary blade fighter (ambidextrous) has a flaming sword (10-1) and a cold bloodbane (20-5), giving me an overall max damage of 30-6, plus the flame damage from the flaming sword. Beats the magic halberd. Furthermore, if you miss with a halberd, you miss. With two weapons, if you miss with one weapon you still have another chance.
Bashing weapons are fine, but not as numerous as the edged weapons. The most powerful bashing weapon I've found is the brightstar(damage 9-5). When making scenarios, people just aren't as likely to make cool bashing weapons.
So for my fighters I'm all about ambidextrous edgers.
~Andromeda