I also have to agree with Raze, dual wield is the way to go for any class regardless of build. You shouldn't be, but you are proverbially penalized for using a single two handed weapon. The reason is two weapons lets you place up to twice the amount of enchantments and they stack. Two weapons also gives you up to twice the additional non-enchantment buffs and charms as well. There isn't a stat cap for two single handed weapons vs a single two handed weapons, so they can both receive the same level of stat boosts.