I don't know how anybody could think that Rarity would win against Fluttershy in the cup. Rarity is still one of the most hated characters in the show.
Well Freewave, the fact that Rarity seems to have a decent fanbase on this site still changes nothing. Rarity has always been one of the most despised characters in the show and that will never change. This site is an anomaly in that regard.