This very day the Ennegram Type Indicator came to my attention. I took the free online test that gives a tentative result (you can take the full test for a fee) and found that I'm likely Type 4, the Individualist. I read the description, and it sounds like these guys have my number, too: instrospective, romantic, self-aware, sensitive, reserved -- guilty as charged! And this SO nails it: "Withholding themselves from others due to feeling vulnerable and defective, they can also feel disdainful and exempt from ordinary ways of living."
HOWEVER, my second-highest score was a tie between FOUR other categories (there are nine) -- the Reformer, the Helper, the Investigator, and the Peacemaker. They are all partly "me," too. And in the end, that's why I still prefer Keirsey. His system integrates me rather than scattering me hither and yon. That's why my favorite companion when creating characters is Please Understand Me II. It's a guide to what combinations of traits occur in real, live people.
Wanna play? Keirsey, Enneagram