So as a Warrior I feel like I can get kited very easily, so I set out on a quest to figure out a way to become immune to fears, trying all different types of specs and skills just to see, and low and behold I found one that gives fear immunity. (Not Berserker Rage.) When you PVP, if you pop Recklessness you become Immune to fear. This may also be something to use in PVE on some boss fights.
The screen shot I wanted to post for some reason doesn't want to load. I have tried changing the file type, but the error is an Io500 error.
Anyways, hope this helps all you warriors out there!
Edit: Ignore the berserker rage remark. This is about Recklessness. Read the Tooltips please =D.