You are 71% Rational, 57% Extroverted, 29% Brutal, and 71% Arrogant.
You are the Braggart! Like Muhammad Ali, you would surely tell everyone that you are "The Greatest" whilst bragging incessantly about your intelligence, your skills, and your abilities. You tend to be a thinker rather than a feeler, and combined with your extroversion and arrogance, this makes you someone who probably just LOVES to brag about his accomplishments. Despite this, however, you are a very gentle, tender person and truly care about others' feelings. You just happen to care more about yourself.
Unlike Ali, of course, you are rather rational as opposed to emotional, and you are also much more gentle. But his arrogance and extroversion best reflect the most visible aspects of your personality. But his afro and his penchant for rhyming...not so much. There is not really much to dislike about you, aside from the fact that you can be incredibly annoying, and you probably never shut up about yourself. You may be one of these people who refer to themselves in the third person. If you have a nickname, it is probably one you gave to yourself, because you are too cool for the nickname others have given you--like "doofus" and "shitface". Your personality defect, in summary, is the fact that you are extremely overconfident, extroverted, and perhaps rather lacking in emotions. YOU ARE THE GREATEST! Or so you keep telling yourself every night as you stare at yourself in the mirror and practically make out with your reflection. Maybe one day everyone else on the planet will agree with your assessment of yourself. Nah, I'm just kidding. We think you're an arrogant dickhole. But a NICE arrogant dickhole, so no worries.