go for demon hunter, i can see it become the dominant class in pvp, sentry hits for blah blah blah
That is so awesome that you are dominating PvP! Oh wait... that's right, its not out yet. Nice guesswork.
I also say wait. If you really can't wait, just for basic stuff like as much damage, armor and all res you can get. I believe LL/LoH/Life Regen/Pickup range will be very nice additions in PvP, but I'll just wait and see.