Classically elegantly with decor as loud as the noise level, Spago has brought the bracing hit of L.A. straight into the heart of Palo Alto. What's not to like? Wolfgang Puck, impresario of the deservedly famed Spago, Chinois on Main and various Wolfgang Puck Cafes, offers Palo Alto decorative appointments by Robert Rauschenberg, a clientele poised between venture VCs and Nobel laureates, and yet still manages to outfox jaded foodies with fresh, seasonal food that always steals the show.