Hey, I'm a first year a University of Nottingham.
The social life is brilliant tbf, Nottingham is renowned for it. Every hall on campus has a bar, the night life is great, it's good for shopping, and with all the societies running different events there's always something.
On campus there's pretty much everything you need, but I wouldn't really say there's much to do on campus at the weekends. But then you can go into town, and depending on the societies you join at the weekends you can end up going horse riding, caving, iceskating, I think there's a sky-diving society too...
I'm so glad I live on campus because it's where everything happens, but it's not as close into town as I'd like. It's only a 10 minute bus journey and if it was in town there wouldn't be the lovely campus there is here, but it can be a bit annoying sometimes.
About the Brummie question... I'm from the West Midlands and literally have met only a handful of Midlanders at all. Most are from London.
And yeah I do have to say there is significantly more girls than boys.
Hope that helps.