Its quite early in the season to make comments about class balance in pvp.
None the less there are a few things that stick out.
3s actually seem quite balanced, although we do seem to run into alot of
TSG comps above 2.1 mmr and we can hardly ever beat them.
2s seems alot less balanced (as always I guess)
But there really isnt much you can do vs good holypriest + war/uhDK comps, they just win.
So my thoughts:
Holypriests might need a bit weaker heals and an increase on the offensive chatise disorient to lower their utility in 2s.
On the other hand ive noticed they go OOM fast in 3s so they might need a buff in that departement.
Dks and warriors have too much dmg and utility, especially vs casters..
DoubleGrip mindfreeze petstun necros AMS IBF desacratedground strangulate/asphyxiate
Charge pummel disruptingshout massreflect reflect fear
This combined with their insane dmg output is too much....
Warriors will also get even more out of control when everyone starts getting more grievous items.
They scale more with gear then other classes due to the design of rage.