I was in a lot of groups back then. The rockers, baseball players (Which yes, is different than the other jock groups), the party guys, and the JROTC group. As you can guess I never really got any trouble from anyone when I was in high school but there still were people I hated, mainly....
[spoiler]The Soccer players with a superiority complex because they think they're more culturally exposed than everyone else simply because they play an international sport.[/spoiler]
-
The 'hard lads' less sports-orientated than jocks and more 'loitering in the toilets smoking or skipping class to beat each other up or throwing hissy fits and throwing chairs at teachers when asked to do some work' oriented.