1 Rarity, She has been my favorite for a long time now, so she's in first
2 Fluttershy, She is most like me, very shy, so i can relate ^^
3 Twilight Sparkle, well, lately i started to like her. She once was my least favorite, but one of my friends made me realize that she is actually quite awesome ^^
4 pinkie pie, I'm not sure about her anymore, but she's still one of my favorite.
5 rainbow dash, she used to be my favorite when i first started watching the show because i love the color rainbow! (XD)
6 Applejack, personally i don't really like her that much, I don't dislike her, i just like her less than the rest ^^