If my memory is correct for Durham, all the colleges have their own netball teams and because of the different levels of ability they have multiple teams listed as A, B, C etc. See the league table here
https://apps.dur.ac.uk/collegesport/public/league/30/2023
As above, Cambridge have tutorials in their colleges whereas Durham is more like a school house, there are traditional songs, games, they have their own bar and drink and there is friendly rivalry between the colleges. Some of them have gowned formals some don't.
Some will believe that certain colleges have a "type" which is completely not true because the cohort changes every year and no one is doing a personality test when they apply. However, some colleges (I think Chads and Hatfield) have a higher percentage of shared room for undergrads so some boarding school kids apply liking the sharing aspect. My own child would rather have gouged their own eye out than share a room. In the past according to Student Room posts some people will reject Durham when offered a place because they weren't allocated the college they wanted which is ridiculous in all honesty.
For all those people who didn't get their first choice they soon love their new college and to be honest, it is usually only 1 year in halls, and not even that, supposedly a 30 week year but it isn't, it is more like 25 because the exams, depending on course, can be over before the end of May.