If berserk was like before , pierce boost would definitely be better than movement speed but the way it is right now body war is completely useless on pvp , its a class that can only hit from melee range , has less movement speed than other classes (archer , healer) and takes a lot more damage from berserk.
Im not saying that they should give us the movement speed back but something needs to be changed. On PVM the attack speed bonus is pretty much useless at high level because you can easily reach the cap , the pierce boost is too little , and the extra damage taken is too much. Also , one thing most people forget is that the monster damage on this server is way higher than official or most other servers , even with max resistances as a warrior I struggle when breaking 90s unless I use 180+ defense from my pet so I dont have to run from mobs every 10 seconds , but if I do that I lose 250+ attack value.