This is a particularly difficult question to answer. Our guild is defined by boudaries set by existing members, new and old. The guild has a life of its own. We follow it where it takes us.
The way I see it, our guild is:
1) A roleplaying guild. Not like the RP guilds you're used to. We roleplay without banning out of character (ooc) chat. OOC is a useful way to convey gobs of information that RP needs to function without resorting to tedium, making RP more fun, so, in my mind, game-related OOC is a subset of possible RP communication. I think it takes a certain quality of mental instability to participate in this kind of RP atmosphere. http://www.ctrlaltdel-online.com/comic.php?d=20030112
Some of our OOC is more...unrelated...to the game, and I don't think this helps the RP cause, but like, I don't see it hurting much unless it gets ridiculous.
2) A raiding guild. We like to raid. But, it's hard to raid. Our biggest recent change has been the migration towards raiding capabilities. We have the brains and ability to beat any zone in the game, so it's just a matter of finding the time and the people.
3) A pvp guild. Sort of. I mean, a couple of us do arena matches every week, at least.
4) A pve guild. I think this is our biggest strength, we do lots of pve, and enjoy it. I do, anyways. Running instances that are a minor challenge or harder are loads of fun for me. Difficulty correlates to fun, most of the time.