Glasgow, definitely. If you're a rocker I'd recommend Solid Rock or the Cathouse if you're feeling more clubby. Although there are literally hundreds of good bars/pubs/clubs in the city so you wouldn't be hard-pressed to find a good time.
If you're in Edinburgh for some unknown reason, try pub-crawling the Royal Mile. Buy a round at each pub on the way and see how far you get.
If you're in Edinburgh for some unknown reason, try pub-crawling the Royal Mile. Buy a round at each pub on the way and see how far you get.