People on this thread arguing that you 'get more support' at non-Russell Group universities is precisely why they tend to not be as good. This is a generalisation but at Russell Group and other top universities there is far more independent learning and having to figure things out for yourself. The courses tend to be more challenging and rewarding in terms of the skills you gain from them, which is why employers tend to favour them.
One thing that does infuriate me though is when people on TSR try to divide the Russell Group into subjective tiers of hierarchy (which is based on nothing other than nonsense, constantly changing league table perception and disgusting entry standards snobbery). People don't like to hear this, but it makes very little difference whether you go to Durham or Manchester or Southampton. Sure, at some of these universities there might be more private school kids, and those who thought doing a 4th full A-Level was somehow a good use of their free time, but the difficulty of the courses, the quality of the education and the job prospects offered from the departments at these institutions are roughly about the same, so people shouldn't act all stuck-up and superior just because their university is 'in the top 10', it's pathetic.