My stuff doesn't really fit into a category. My school may not be huge - 1500 students, Years 7-12. Since it's Israel (Including "End-of-the-world" feel), we don't have advanced classifications, and we don't have any school-organized sports which could rank people.
I'm considered a Nerd/Weirdo. I'm not sure, but that's my guess. I don't study, and I can't concentrate, outside school, on learning. I still get 100s at the tests (This year, I've dropped a point or two due to not-paying-attention to mistakes). However, that's not what makes me unpopular. It's not that I'm totally a totally unpopular outcast - I've got a few close friends. But I've got too many enemies, partly because I don't give a damn about them, partly because of my appearance, partly because I don't know. Actually, I've got some ideas about why - Long hair, Weird music-preferences (Jazz, '60s-'70s Rock, Blues).
However, the main thing seperating groups is just the "kind" of people - one (Me in there) includes quite a few who excelin classes, but get along good with each other. Some are (Dunno the name), I guess, what would be "Footballer" in the US - they have friends across the classes, all together for one purpose - to make others miserable. They're usually pretty bad in classes. Others are ultra-outcasts. Nobody really likes them, because they lack any kind of social skill or tact. They're not smart, they just exist.
I take Physics and Advanced Physics/Computer-calculations (MatLab and stuff). I tried to take a course that stuffs 5 years of math into 2 years, but failed the end-of-year test. I'm considered a nerd by some, because of those classes. However, I have buddies and friends from all groups, because I'm not casting myself out. For every friend I have, I have 5 enemies - people who don't even know me, recognize me by name because I'm "That long-haired freak". I'm in a weird position, because even some from my "group" are pretty unfriendly to me. I dunno, I guess I'll repay them when I get some well-paying advances-physics job and they only get a high-tech job.