Want a definition of great service? Sink into an armchair at £10, the semisecret Macallan scotch bar at the Montage Beverly Hills, and let your barman go to work. He’ll wheel out a mahogany cart stocked with Lalique crystal glassware, chilled soapstone rocks (for those who frown on dilution), and an array of rare single malts, with which he’ll prepare the best damn scotch you’ve ever had. Maybe it’s the distillery’s smoky, spicy 18-year Sherry Oak ($35). Or the Macallan 64 Years Old, a goblet of which will set you back $64,000, not including tip. You should tip well.