I am willing to bet that this entire PvP Forum should not even exist due to PvP will never "really" exist in a balanced way in D3, ever.
There would have to be a MASSIVE reworking of skills, MASSIVE. Did I mention the MASSIVE reworking of skills that would need to take place?
I'll give you an example from a WD perspective:
Haunt - Poison Rune
Gear +100% Haunt Damage / +100% Poison Damage / + Maximum Movement Speed
Scenario: Haunt and Run. You would need well over 11.5 MILLION HP to survive it. Just 1 Haunt, bam, you're done.
PvP is not going to ever be prevalent in D3 without a major overhaul, stop letting yourself down.