There is this really annoying, over acheiving girl in my grade. She is rude, selfish, beautiful,gets first place in every sport she participates in, is smart and gets academic awards, and, she has the guts to talk to the guy that I like so very much!

Being jealous and горький at other girls isn't going to help Ты get the guy. If Ты forget about the rivalry and instead focus on yourself, feeling confident and doing the best Ты can in your own life, people will be attracted to you. The jealousy is natural, I know I've felt it myself (ugh I can't STAND people who are so disgustingly perfect), but try to forget about her.
The main thing is not to appear desperate. So don't желтовато-коричневый, палевый over him, don't hate on this girl too much, and just try to be the best, happiest person Ты can be. That is your best chance of getting him :P

All I'm going to say is that Ты shouldn't care this much about a guy liking Ты better then some Популярное girl. If a boy likes Ты for you, not because you're beautiful или athletic или whatever your classmate is, then that's what really counts :)
Ты ARE gorgeous inside and outside, all Ты have to do is acknowledge this and always remember your beauty until Ты absolutely believe in it!

I am so NOT the type of person to answer this question, considering (no offence, really) that I am worse than Ты at this. But Ты can get him. If he smiles at Ты and winks and Ты или something, then he must like Ты at least A BIT или he is just an arse who is a tosser and not worth it. Ты decide.

well, I've seen what has been written so far. I can't say anything better then the above. Good luck, my dear. Ok, one thing- if he is so interested in what she says, AND flirts with you, do Ты think he's a player? Stay away from players, they care only for themselves and break hearts.