I just want to say, at 58 I swapped my 31/20 fury arms spec to 31/20 arms/fury. This is, in my opinion, the superior aoe leveling spec for warriors. I'm a little upset that I knew that it was probably better, but I persisted with fury for so long.

In short, the opening aoe burst from sweeping strikes into whirlwind, or mortal strikes, is so vastly superior to a fury build that it's almost stupid that I only spent about 4 hours and one level with it back at level 36 or 37.

To give you an idea of the difference it has made for me. In most 4-6 pack aoe situations, I would typically have 1 warrior do MAYBE 300 DPS(edge case here not using ravager), and the other 3 do 120-200. By swapping back to sweeping strikes, all 4 warriors will often finish the fight north of 250-300 dps. The opening burst is just far higher.

The downside is, you will probably lose some sustain, which will hurt your boss fights which when you are running all melee, can be problematic against any sort of heavy aoe mechanics.