choices choices

Fairbanks PvP Pacific
Whitemane PvP Pacific
Grobbulus RP-PvP Pacific

it's one of these 3 for me - or I should say, 2 of these 3, 1 for allies and 1 for hordes
wondering if RP-PvP is ok for mboxing (family of 5, quintuplets, group of friends... backstory)
I suspect the RP-PvP will be very Ally biased... not sure what to roll to make it interesting there (go with the flow, alliance, or have lots of alliances to kill/farm and go horde on that server?)