I like playing a quirky goofball with a dark secret. This sort of character gets caught up in their childish antics, makes friends and enemies quick, and avoids conflict when possible. Of course, they are deeply broken, they just happen to be particularly good at hiding it.
Warrior cats. I don't know why; I even read half the first book (before losing it :( ). I just can't stand playing warrior cats. I don't have anything against the people who like it, but I can't ever play it.
I'm interested in GMing, because of the fun of creating a world with interesting ideas, then seeing people come populate that world, and finding out what they do in all the crazy scenarios that come about. The groups that form, the stories that emerge, it's all a lot of fun. Though being honest...