Alas, I will be achieving the half century milestone in late July, when I will find myself and family (two young teenagers) in Barcelona. (We're from Canada). We considered going up to Paris for the big night, but I am sure Barcelona can offer something pretty spectacular.
My kids are not terribley adventurous, and my wife likes fish but not crustcaeans, outside of shrimp. I myself have and will eat anything. We're looking for a restaurant which will provide an upbeat, Barelona ambience, understandin we are a family with two teens, which concentrates on great food and competent service, and which will feel like a special occasion. We'll be in central Barcelona. Of course, a bottle of champagne will be in order and price is not too much of an object. We'd prefer something that does not require formal attire or little black dresses.
Thanks in advance for your suggestions and I will be sure to report on our night.