I like this question even though the thread is dead.
Twilight: She's the princess of friendship so yeah I think we could be pretty decent friends. She's not too crazy and neither am I. If I got to know her on a personal level we'd be great friends most likely. Or maybe not, she might find me boring. or rude. I can be rude at times I have my moments.
Rarity: wouldn't even notice me, but if she did would likely think I'm really nice but too quiet. She'd think I'm boring as well. Or rude I like to tease and she's a prude so she might not like me too much.
Rainbow: she'd think I'm