PvP as a melee is all based on timing. If you're a tank, make sure you use your engage. Don't just run in. If you're a melee DPS, you need to follow up the tank, don't try to go in alone.

The sad part with PvP is that after the nerf, they made it so it isn't worth trying to win. If you are losing, it is best to just lose immediately for the most experience possible. However, taking experience away would just move people back to Palace of the Dead. There just needs to be a greater incentive for people to try while punishing AFKers.