Server consolidation is needed.
As a previous poster said there is NO, I repeat NO, world PvP on Master Dar Nala. I have leveled 8 characters to 50, do you want to know how many times I engaged in Open World PvP? 3 times. Twice on Belsavis, and once in the Voss Temple.
I think that's got a lot more to do with the heavy phasing separation on most worlds.