Fury it's a spec which it's quite easy to learn and to master as endgame dps but it's the worst leveling spec you can choose. You will miss a lot because of the dual wield and this increases the chances to ragestarve. It's a gear dependant spec so I wonder if arms pve will be superior as dps in the first two raid tiers. From TOC you should be able to reach higher amount of armor penetration and fury should dominate again.
Btw, Rares, even arms is always pvp ready, and Juggernaut is the arms counterpart of the Warbringer talent in the protection tree.

