PvP is not about killing your opponent, it's about your healer getting more healing off than the other guys healer, as a byproduct you die, but really, once your healer dies, you're useless. So many Arena matches have landed where it's a DPS and a healer left, and the DPS can do NOTHING, no matter how skilled, no matter how much he chains his skills to burst and then control. He'll lose, it's actually a big thing to kill a healer solo.
People complain about DPS self healing when honestly, It is alright, it extends the periods that DPS can stay up by themselves.
PvP should not be based on how you handle the Healer ONLY, it should be based on full team management.