I'm in plague, so I can tell you more about that one. xD; plague is all about strength and adapting and survival. We put a looot of emphasis on fighting in the coliseum and being strong at Dominance. We're a little gory and traditional welcomes include being sneezed on and maggot confetti. We have a lot of medical students/people who are interested in diseases, and there's a lot of really informative posts on that sort of thing.
Wind is the artistic, silly, energetic, lighthearted flight. Their mascot is the corgi and I think they have a lot of forum games and random chatter. They're said to be wanderers at heart, loving to travel around and never being bound to a single place. Most of their members don't care much for fighting or being amazing at Dominance.