Post by Uricidea
I use a build similar to yours. I am very happy with it, and it looks to be getting even better with the expansion. I can recommend a few changes though.
Improved Heroic Strike, and Improved Charge are not very efficient uses for talent points. HS "steals" the white swing that it lands with, stealing the rage you would have generated. With slow 2-handers this can cost you allot of rage. With this in mind you shouldn't use HS very much, and that makes you think why sink points into it.
Charge is only used once in any given fight, and not every fight for that matter so it isn't the best investment either. Consider putting just 3 points in Iron Will, then that will open the next tier. Piercing Howl is really considered a PvP tool. It can be fun to have but not essential at all.
You should always spec Blood Frenzy on any build for PvE. It is the single biggest reason, along with your Shouts, for a Raid to have an Arms warrior present. I would take some of the points you have in the Fury tree and get Tactical Mastery for sure. It allows you to make use of all the attacks you have in any stance, by saving you the rage you need to pay for those moves. Look this
Build over and see what you think.