List of Warrior nerfs since Beta:
1) PVP 4 pieces bonus. Heroic leap doesn't break roots instead it increases movespeed by 70% for 3 seconds.
2) Glyph of gag order does not work on players
3) Dragon Roar had it's damage significantly reduced.
4) In an attempt to make playstyle better, Execute damage was nerfed and MS, OP, BT, RB damage was buffed. And then they nerfed MS, OP, BT, RB to original levels.
5) Avatar does not longer make you immune to slows and roots and it no longer generate more rage.
6) Second wind nerf (not sure how - battle fatigue?). It's just not 3%. It also doesn't work while stunned.
7) Defensive stance nerfed to 15%
8) Glyph of heroic leap does not do additional damage
9) Warbringer stun DR's with all other stuns.
10) Taste for blood nerfed initially to 3 stacks and then to 1 stack.
11) Intimidating Shout cooldown was raised from 60 seconds to 90 seconds.
12) Shockwave cooldown increased from 20 seconds to 40 seconds.
13) Overpower now costs 10 rage. Up from 0.
14) deadly calm removed
That's all i can think for now. I am sure i forget some.