@chopc thank you for the new thread and the great title.
Ds was redirected for Computer Science but he is a pragmatic sort of chap so we had already had discussions around his other university choices before he applied in terms of he made a spreadsheet and listed car journey times plus train journey times, accommodation costs and looked into catered. 
He has 4 offers but I think Durham and Warwick are his top 2 choices, Warwick want A A A whereas Durham have a reduced offer of AAA. He is taking 4 A levels (Further Maths).
I completely agree with
I can't explain it but this is the difference between kids from private schools and state - the self assurance and confidence as they have been repeatedly told that they are special
When I was at uni the students who had come from selective indies and grammars were always so sure of themselves. Not cocky, just confident. My friend put her shy daughter in an all girls fee paying and the transformation was incredible.
Re arseholes at unis, they are in every uni. Oxbridge redirects are always going to be at the top unis, ours included, some of those will be from very high fee schools and lifestyles that are a world away. Some of them will be arseholes, the others will be great.
We live in Yorkshire and Ds has a soft Yorkshire accent but it is not stopping him from considering Durham. I feel that Cambridge have tried hard to say we cannot be diverse until more diverse people apply, including Ds who is from a state education. Despite high GCSE grades no one at his school even suggested Cambridge, it came out of left field when he was picked for Cambridge outreach HE+. Until that moment he, nor us, had even considered Cambridge.