The best are on the Bastion, all PO5 has to do is suck it up and come to the Bastion.
Leave all the garbage guilds there and only the good guilds come to ours.
If any of the good rated guilds on all the servers suck it up and come to the Bastion, imagine the Q pops and the competition.
It would start a wild fire in PVP and it would be amazing.
Plus look at it this way, even if your est playing on a west coast servers its not far off, so the difference is only a few hours which isn't a big deal.