Could you recommend a decent city in Spain to go for a few days that has lots of things to do in the day, good nightlife (ie bars that stay open late and have stuff happening like live music), decent food, a good footy ground worth visiting, would be good to go as a couple and is very Spanish?

Obviously the English bit at the bottom is of no interest. Barcelona is the obvious choice but I've heard it's not very reflective of Spain as a country. I'm definitely considering it but at the moment places like Sevilla in the south and San Sebastian more north are tempting me a bit more. Weather not a factor either.

Fanks guys