A social life is very easy during an Aero degree you just have to manage your time well, I managed to have a great time at uni just use your afternoons and the rare free mornings wisely, sunday afternoons are a great time to work as most people bugger off home for the weekends, just make sure you can be free on wednesday evenings.
As for places to study I chose QMW in East London, not as famous as Imperial but much more fun and with a better ratio females:males than most engineering uni's. It well positioned for getting into the 'Big Smoke' for those mega nights out as well. Negative points it's bloody expensive place to live.