Form party by PvP rank lol, like wolfs den or what? So that you never get an invite!
95% of my machtes I have not a healer in my team, why i should move with the party, play against other gc with 4-10 healers if i know that we will lose...

Or move with 3 tanks 2 bards and a mecha, the weakes dmg ever party and die against a team with only 1 healer...

PvP should be more an balanced 1vs1 or 4vs4.