Well i really dont know what is this supposed to prove? On my pvp 8 barb ww4 non crit deals dmg like you did with crit (maybe bit lower) but that is if it is buffed with staggering blow if not than first hit is aroun 700 or so. But if you think that barb with good gear will destroy people with ww, specially like you said that you were zerker build than you are in for big let down.
I use it from time to time but with jump combo, if you cant land it that way you are in for a long animation like sitting duck. and you will get destroyed hard.
In hybrid build it can be quite useful with dance of death (ww5) but in general its situational combo.
Beside i dont see what relevance is crit dmg. Butcher 9 when crit is awesome dmg to, but how much crit rating average not t4 barb have? well not that much to rely on it.
Do you know dmg that sds+face stab can do when crit, or dww?
Do you know dmg that counterweight can do when crit?
Do you know dmg that pilar can do when crit, or HS?
Do you know dmg that PS and TTS can do when crit?
I can go like this all day long, and all these combos are more viable in pvp than ww...
lol saying ww is faceroll ability