Strength >= Accuracy (110%) > Surge (70%) > Power > Crit (25%)
Keep Berserk up as much as possible
Use Gore+Ravager together and pop a force scream in there if it procs.
Use Vicious Throw if available.
Force Scream if it procs from Execute
Massacre to maintain the buff it gives
Saber Throw if its ok (Dont use if your next to a CC'd add)
Thats the priority system to use with the Carnage build and the Stat priority to maximize damage output.
Hope it helped