Michel's is excellent, but as Tom mentioned - can be a bit pricey. If you are looking for something of a more casual (and less expensive) option - I think Tiki's Grill & Bar is fantastic. It is located on the patio roof of the Aston Waikiki Beach, across the street from Waikiki Beach. But, the patio setting offers awesome uninterrupted views of the ocean. I particularly like their coconut shrimp, but they have a wide selection of other options (seafood and otherwise).