Fury DPS is going to be significantly better overall in a raid situation. Single target it's a little closer, but Fury is much better at keeping DPS up on mobility fights, of which there are a ton in ICC.
You've logged out in your def gear, so there really isn't much I can comment on for gear. With either Arms or Fury, you want to make sure that Hit and Exp are capped, then focus on ArPen until you can get about 51% if you're using one of the ArPen proc trinkets. After that then you focus on Str and Crit.
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