Kpt._Rob said:
None of them.
"Personality Psychology" is an insult to legitimate psychological research. It preys on the same predilections of the human mind as cold readers, specifically that when given a series of vague descriptors which could describe almost anyone, and told that they were tailored specifically to us, we will assume that the process by which they were assigned to us is legitimate. It is not. The tests that so called "personality psychologists" use are as useful to you as the advice a palm reader might give you.
The human mind is too vastly complex to be summarized on a relative scale that takes into account a couple of "personality characteristics." If you really think that the characteristics of a human mind can be determined by asking someone a hundred or so multiple choice questions, then you owe it to yourself to re-examine just what you think it is to be human.
It's broad-scale, a very rough approximation to the degree of being almost negligent. That is correct.
Egotistical streaks of our personality are just one little fragment of what the MB-Test does not factor in. It is not an accurate perception of a complete human being's personality, BUT it drives us to reflect upon ourselves.
This is the point where it becomes an interesting excursion into our own mind. Yes, it is cold readin, but effectively directed against ourselves. We can not summarize the complexity of our mind in a word or index, but we can approximate over many experiences what kind of person we are. The oldest such division - good people and bad people - was even broader, but that did not keep it from being discredited until recently, if at all. These categories are not inherently "an insult" and despicable - it's in the way they are used that they may become so.
However, this test is free and secret and has no catches attached, so I would label it a fun way to think about oneself and reflect on one's strengths and faults.
Edit: As for egotistical streaks - many descriptions assume the INFP makes people feel at ease because it is their "calling in life", and there is no alternative type if you have that trait but do not. I for one do seem to make people feel comfortable around me, people confide in me, and I help out people. But I do it to serve myself. It makes me feel good, but not because I help someone but because it gives me some sort of authority. Meyers-Briggs does not assume that people think like that, but that they are, in their deepest heart, pure. Like any test that wants to be paid for, it is geared towards leaving people with a positive outlook, neglecting their weaknesses and dark spots.