*sigh*
Last time I browsed through this forum, this was the topic I posted on.
I say that maces are better, as they get 40% more of your total str dmg + wpn dmg (which is basically all your attack damage) from their mastery. The best mace you can find is a rank 5 morningstar, which will have 5 less modifiers than the abundant unique swords. A good trade by far, I think, since you already have TONS of stat modifiers from armor and only a few of the weapon-only modifiers are good (elemental dmg and drains namely). The problem is that you would have to get the rank 5 as a random drop, and there would be no chance for save/load cheese after you moused over it.
If you tell me where you can find a rank 5 morningstar with any consistency, I'll pick the game up again to make the ultimate uber warrior, heh