The catering points made upthread are valid. My DD was adamant that she didn't want to eat 3 meals per day in college as she's quite fussy/intolerant. When she started at her college, there was a minimum catering spend per term but that was ditched in either her 2nd or 3rd year. In the 1st year accommodation, there are small kitchens on each floor with a hob, toaster, microwave & kettle. DD managed fine with that. Then in her 2nd year she was in the older part of the college with a slightly bigger kitchen. Her floor clubbed together to buy a tabletop oven and use it sometimes. In her 3rd year she was in an old house on the college site which had proper ovens and a freezer. She loved that. Now she's in the 1st year block again.
As others have said, don't get too stressed by the college. DD sings in a chapel choir, but not in her own college. It's perfectly possible to do that. This other college gives her a free formal every week for it.
One of my students applied to a large central college this year, was interviewed and on offer day received an offer from Churchill. Because she knows DD, she asked if I knew the place. This girl doesn't give 2 hoots about the architecture, she's just thrilled to get an offer. Having taught her for 7 years, I knew what to say to appeal: it's handy for West Cambridge (she's a scientist) and there is an excellent lactose-free section in the large Sainsburys there. She's now hoping she gets the grades!
The allocation of open applications table makes interesting reading. Although I am far from an expert, it looks as though the colleges receiving the fewest open ones (Kings, Johns, Trinity) are those that are the most historic/prestigious and probably have more than enough applications. Girton, being a distance outside the city centre, will possibly put some students off. DD was adamant that she didn't want to go there, but an autistic family friend has had a wonderful time there; in his case, its quieter location was a pull-factor.