Knowing that warriors are getting a fix in 2.1, i believe a change I would like to see in the skill Berserk would be something that works in sync with Defiance.

Berserk: Increases attack power by 50%
In Defiance: Each attack skill generates 1 additional wrath.
after Berserk ends 5s pacification.

I think one of the fixes could be something like this since will enable warriors to build wrath faster and plays into the role of the warrior actually going berserk with wrath heh. Thats just my opinion.