reddit chose IoJ/GoM
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The idea of gw2guilds.org probably can help people situate. If you want a server with lots of guilds, you can go to one server...lots of PvP dedicated guilds, another. Obviously, the fact that it lists what guilds are going where has no real bearing on how the server will be or whether or not they'll be good WvWvW wise. But...it could help.