Short answer: Mary Lou by Eytan Fox.
Why? Because it treats real life and real problems and not high school imaginary drama with bunch of adults in their mids pretending to be high-school students. Yup.
And the music is better. I like Svika Pick! And you like it too, if you like Harel Skaat.
Attention (Anti Semites): the movie is from Israel and is in Hebrew
Attention (Anti Gays): the movie contains some homosexual imagery and transvestite imagery - nothing profane though.