As we all dont want to join on a Server that is damned to fail from the beginning, we gotta keep our eyes open for Servers that have active, well organized guilds and alliances.
The first Ally i find quite interesting is this the "Northern Assembly" from the Server "Far Shiverpeaks". Take a look yourself and tell me your opinions, also keep your eyes open for other alliances on other servers that could be interesting.
FS scored 4:2 first BWE and won all in BWE#2 atleast thats what the guy i was talking to told me. (not a big reference though, it will all swap after release anyway, when guilds/allys really start to organize themselfes with their whole playerbase)
Homepage: http://www.farshiverpeaks.com/