It sorta depends on what kind of riding you do.
Cynergy for Specialized, Bianchi, Ridley, Time- good wrenches, high end parts and they stock Hammer nutrition, for example. Helens for Trek, Cannondale, Colnago, Pinarello and others.
Definitely check out Veloworks, though. Small shop with fantastic service and ALL the latest stuff and very helpful staff - like it should be, IMO.
3102 Lincoln Blvd. 310-584-9797