Bath, Edinburgh and Manchester are the stand out choices there mate. They are all fantastic places and universities. Bath and Edinburgh have a smaller, more traditional feel to their cities, while Manchester has so much life and choice it's a great place to be (and is much improved recently - you won't be shot/stabbed unless you end up in the wrong part, but it's so huge you won't ever need to).
Dundee, Nottingham Trent and Liverpool are the next ones down in terms of uni, though the cities aren't that great (avoid nottingham if you don't want to get shot - and they have the worst football team in the entire world), and the rest I don't rate particularly well at all.
While Oxford is a nice enough place (I suppose, for being the wrong blue and all), you'll get very annoyed with everyone who's at the 'real' university there.. ;)