Yeah, it's not so much not agreeing with parts of the profiles (which also change a bit depending on where you're getting them; it's been a while since I've read through them), but how they're schematized, or something. I don't trust the quizzes, for the most part, because I can't answer half of the questions without knowing more about the circumstance, so I've mostly read the profiles on both these systems. That said, the tests have put me basically in the vicinity of the ones I listed. ANYWAY, I think a lot of it has to do with the way that the enneagram links each type to the other, and especially the way it describes healthy and unhealthy stages of each type. The fact that the MBTI seems to just have static types (I haven't studied it or anything) is a big drawback.

AND I don't like how you choose between these polar choices in the categories - I or E, J or P, etc. It's way less intuitive and recognizable to me than enneagram clusters of traits all based around a basic fear/goal/etc.