I am going to San Sebastian for the first time in late March; I'll be there for three nights. I am planning on going to one or two of the well known two and three star restaurants, preferably for lunch (I am traveling alone, and usually prefer lunch over dinner at these types of restaurants).
Any recommendations if I go to only one "marquis" restaurant? Or if I go to two? If I go to two, I would like to experience two different types of places.
Also, regarding Pintxos, any specific recommendations, or general recommendations or strategies. As a solo diner, will this be a good thing or a bad thing? I am not a fan, in general, of very crowded standing-room-only places, particularly when I am alone.