Enchant and gem your stuff, reforge haste to hit until cap (8%) and after that raise your crit, specc properly (incite? throwdown? if B&T then 2 pts there) and watch your chances for aoe'ing. With sweeping strikes, bladestorm and cleave you have a nice toolset to do some crazy dps over a short amount of time. Do you use deadly calm, inner rage (awesome with bladestorm!) and recklessness frequently enough?