So it turns out I really AM Princess Ariel Celestia!!!! INTJ. Who are you? :)

[Pinkie21]

Cool, I got INFP (Luna).  That's pretty cool!  Though I feel much more like her when she was Nightmare Moon lol.  I'm SO not "Nice"-Luna lol

[SourdoughStomper]

ISTP. According to test, I'm most like Spike. However, going by the descriptions - I think I'm more like Fluttershy.

[Shenanigans]

I'm Sweetie Belle! It describes me so well that it's scary
 
By the way, Ariell Celeste is a gorgeous name!

[StarDragon]

INFJ for me.. I had to read the Wiki page on it because I still wasn't sure what it meant. =)

Soo... Zecora ^^

[Flitter]

I've taken the mbti quizzes several times over the years and always am INTJ.
So I am most like Princess Celestia 

[rybett]

Sweetie Belle here!  Dad is Big Mac, yup that fits.  I've done MB pretending to be DD, gotta try that again.

[Silver_mirror46]

INTJ... I'm Celestia! Awesome, though I thought I'd get Twilight

I had taken a test that gives these answers... just with a more professional aproach (from a friend who studies psychology... I'm her personality test guinea pig lol)

[rybett]

DD is ENFP, Pinkie Pie.  Also explains why we clash so much.  Mama is ISFJ.

[Kalavista]

What! I'm Pinkie Pie?!! I feel more like Cheerilee!!

[Dewprincess]

I am either Luna or Zecora :-)

[will2Bfree]

I got Princess Celestia, as well.

[BlueChaos]

So, apparently I'm Fluttershy. Pretty accurate, sadly.

yay.

[BrightIdea]

Another INTJ here (princess Celestia)

Is that the most common type?

Actually this is one of the rarer personality types. Maybe we have are predisposed to take internet quizzes, haha.

[Nocturna]

I'm... Luna? Weird, I didn't expect that o.O

[Ren-Ren]

I'm Spike. 

The test's description (ISTP - "Engineer". Values freedom of action and following interests and impulses. Independent, concise in speech, master of tools. 5.4% of total population) is pretty darn accurate, I think. Spike's description is good too, but there are one or two things I'm not quite sure about, heh.

I can't read Fluttershy's description because the yellow doesn't contrast well enough with the white letters ;