So this thread was interesting to me:
Testing out Endless Rage (44/14/3) ~2k 3v3′s
The Warrior posting it has a very high Arena rating and achieved Gladiator last Season, so what he says does have some merit. He is toying with the idea of speccing deep Arms to pickup Endless Rage rather than what has become the standard cookie cutter build.
Here is his Armory, so you can see his talent build: Swordscream