why is fluttershy the best pony? I will tell you why.
-she is the only pony to openly accept her flaws
-she is grateful towards those who seek to improve her
-and equally will help you correct your own flaws, sternly if she truly cares (But she only uses THE STARE on non sentients)
-She doesn't seek to improve you by force, or ridicule, but by gently pointing out your flaws of thoughtlessness and unkindess (the only flaws in her books), and then forgives you.
-She needs to be loved and accepted
and returns this to any one who gives it, even if she needs to struggle to fulfill your requirements
-By holding her hand and leading her forward she can save the day almost as frequently as twilight.