My top three choices would be the following (ex Providence), in no particular order.
Wolfgang Puck at the Hotel Bel Air
Each are fantastic in their own right and fits the criteria of “fine dining lunch” but each will offer different experiences vis-a-vis the others.
Patina will be a bit more formal, though not stuffy, as the clientele tends towards more Wall St and white-shoe firms vibe. Sort of a fallback for those who want a reprieve from the California Club, or those that need to impress but don’t have a membership at the California Club, and the Jonathan Club is just a bit too ragged.
Spago is certainly more casual by comparison, and the vibe in the room exhibits that. It veers more towards a Madison Ave and CAA crowd. The room can also be a bit louder, though the atrium is always gorgeous when the sun is out, or even when it’s not.
Wolfgang Puck at the Hotel Bel Air again will be different. Older, a bit more serene crowd. Lots of hushed voices and the room tends towards a more eclectic group (from tourists, to drug dealers, to sugar daddys).