Lombardo's would be my choice.
Make sure if you have time to go to Tapas 24, I ate there 3 times last September and will be going in there again this Sepbember to eat again. It is priced right and how I learned about it was watching TV here in the US on a show called To Spain With Love, they go to many places all over Spain, and Tapas 24 was the #1 Tapas place to have tapas in Spain, they were right on with that.
debear, I'd love to hear some must do stuff in Barcelona if you can. I'm not a wine guy but would love some suggestions. Cigars, food, places to see. Unfortunately, there are no Bull Fights in the last part of October, So I won't cross that off the bucket list.