In my day I wasn't particularly aware of any differences in provision between colleges. In fact, I had more supervisions out of college than I did in as my DoSs (we had 2) did huge trade offs with other colleges on the different papers - I had supervisions in at Emma, Trinity, Newnham, Churchill and Fitz as well as some lovely (eccentric) supervisors who taught from their own homes (not sure that would happen now, but I had great experiences.) I was at an old, town, river college but off the tourist track and had a fantastic time, even though the bathroom in my final year was unheated with listed single glazed badly fitting 18th century windows, and a dripping tap that regularly froze...
DD has visited about 10 different colleges over the past month and her ideas of what she wanted changed radically once she got inside and starting talking to people. I thought she'd love Kings (it was the trendy lefty college in my day and I often wished I'd gone - all my politico friends were there) but she wasn't at all impressed as in spite of its statistics on admitting comprehensive students she found it unwelcoming and standoffish - said she felt like they know they'll be oversubscribed so didn't try to attract any interest.
She has refused point blank to even look at my old college, which I can understand, and has finally chosen one which surprised me but her reasons are very sound: accommodation in college for all 3 years, fantastic grounds, lovely library (big) and very close to Sidgwick.
She's acutely aware that the odds of being accepted at your chosen college are very much against her but her response was classic: "I'd go anywhere just to get in. Even Girton." (Nothing against Girton other than its location you understand.)
Now we just have to wait for the AS results. I don't remember there being this much stress back in the 80s. But then, I was quite naive and not that aware of the level of competition to get in.