.......................One of my friends wanted me to say this....I'd get a llama if I did it. Feelin butthurt yet, worst pony lovers? Take a hand to Rainbow dash! Best pony! (No I didn't wanna say that. Yes I would get a llama from my friend if I did this.)
Dash will possibly win. Shy is too weak and helpless. Don't believe me? Watch Season 2 episode 1. Dash has a sonic rain-boom. Shy can't do a thing, she can't fly too well, and Dash is more tough and athletic. All people who said Shy, you only said her because you think MLP is all about her and you think Fluttershy is everything.
Oh my, interesting matchup! I'm going with Fluttershy on this one.
Both could win this match given their own strengths and weaknesses, but for some odd reason... as much as Dash can probably outdo Fluttershy in speed, I believe Flutterrage could pummel Dash to the ground. After all, it's those quiet shy ones that you got to watch out for, not the ones who only boast about themselves.
? But that wasn't a fight. FLuttershy just overreacted. Next episode showed them as good friends. FLuttershy hates fighting. Rainbow Dash know karate and uses it in combat as well as her flying tricks. Fluttershy is basicly a beastmaster so this is her fighting technique. Once again: it wasn't anything that could be called a legit fight, one on one.