I have been with AoA since 2008, and have played numerous games with them during that time: WAR, Rift, BF3, LoL, Diablo III… now even an EVE group is making a comeback. As a member you can play with as many or as few groups as you please.
On top of that, we have a great group of admins and mods, with various tech backgrounds, that take excellent care of our site, the forums, and generously provide us with services like a big TS3 server and even IRC.
With every new game, there comes new opportunities to make friends with new members, catch up with old members you played games with in years past, and even take a shot at leadership if you fancy that sort of thing. I myself ended up as the division leader (read: guild leader) for our GW2 division. Awl is our division second, by the way.
I have but one question to ask you all… beer, cheese, or monkeys?