One thing I remember quite clearly from being part of a raiding guild, was having guild 'mates' with whom I barely spoke, some really heavy rivalries going on that were pushed under the rug because "let him be, the d00d does good Dee-pee-ess", endless raving about what talent spec/weapon set this guy or that guy should have because "this calculator said so", and so on.
Since there are plenty of threads dedicated to PvE guilds fellating themselves regarding how fast they can kill the 2005 AI, I figured I'd ask something more interesting. What are the guilds were people are the most friendly, talkative and willing to help each other out in both factions? It doesn't really matter to me if it's PvE oriented or PvP oriented. Even if I personally don't give a shit about PvE anymore, I assume that good communities can be built on either feature.