"Both my DH and DS have seen plenty of people succeed after graduating from 'ex-polys'."
Same here. I think the high achieving posters are probably referring to their own experience of their own workplace. Where I work (not a blue chip/law/big city firm) it doesn't really matter where you did your degree, or indeed if you even did one. Some of the most successful managers/directors don't even have a degree.
Although I realise that to get started in the workplace these days, having a good degree seems to be a prerequisite.
I have been doing some research and it is interesting that some high ranking universities are not Russell Group, and some Russell Group universities languish a fair way down in the university league tables.
The non RG universities that are very highly rated by all the league tables are:
St Andrews
Loughborough
Lancaster
Bath
UEA
Surrey
The Russell Group that don't feature highly are:
Cardiff
Liverpool
Queen Mary
Queen's
We are doing the rounds of university open days again as DD wasn't sure what she wanted to do, and one of the first things we loked at after the usual league table/RG ranking is what the employment prospects are afterwards.
With 3 good A levels she is able to apply for courses that are asking for her grades, and she should be able to find a course that is academically rigorous and well respected.
My advice is don't just be blinded by the fact that a university is RG, especially if you are considering vocational courses that are accredited by professional bodies.