ximae, dont talk, OK? With buffed ray of frost/teleport and non stop frost nova + stun + mirrors you dont have the right for asking ban WotB.
Also against dh the only rulz that could be goos is -"barb can choise 1 but not both from the skills "War cry" and "Shout"
Everything else gives advantage to dh.
!!! And something important. Last time i played PTR IP was nurfed 2% on paper, but only on paper. In game i was healing 4% from my life, so this may be not fixed yet.
As to WD, yeah, this class is now Insane. No matter barb,dh or other hero. WD has the same life regen as barb and more dmg done compared to dh- another clever move from blizzard. I am not sure how wd could be balanced. I am really against banning any skill.
As to barb vs wizard again - WotB is 15 sec. Only 15 sec, and wizard has buffed escape ability.