Is this a trick question? Siriusly, Harry's only failed to get the Snitch once or twice, and only because of injuries or dementors.
He snatched it right out from under Malfoy's nose, remember?

Harry never failed to win a match! (Apart from when the Dementors knocked him off his broom)

Siriusly? no brainer :)

nobody picked cho or cedric?

I prefer Krum, actually.

This was kinda easy. :)

I used to like draco but i now think cedric is more cutter than draco but i pick harry because he win so many time and he so brave.