Makino Chaya restaurant 
is an amazing seafood buffet located in the Aloha Tower Marketplace (2nd floor, towards the back), Honolulu.  Dinner at Makino Chaya is about $30 per person and the dozens of entrees vary.  On the nights visited, there were unlimited softshell crab, shrimp tempura, spicy shrimp on a stick, snow crab legs, miso butter fish, teriyaki salmon, shrimp & walnut, ahi poke salad, sashimi and sushi of various types.  In addition, there was a teppanyaki grill cooking giant scallops, Wagyu beef, and engi mushrooms.  For dessert, there is a creperie and chocolate fountain for dipping.

Todai Restaurant
is a sushi buffet (about $28) located at 1910 Ala Moana Blvd, Waikiki.  A whole room at Todai’s is devoted to all types of extremely fresh sushi, sashimi, and seafood salads (such as red snapper salad, ahi poke salad, and octopus salad).  Another room is devoted to hot entrees such as Korean short ribs, BBQ pork ribs, chicken teriyaki, salmon, steamed clams, shrimp and vegetable tempura, teppanyaki, carving stations (roast beef and pork belly), ramen and udon soups.  A third room is devoted to more salads, snow crabs, and dessert (cakes and crepes).

Ho Ho Chinese Restaurant
is located at 590 Farrington Hwy, Kapolei (Oahu's west side, exit 2 on H-1, near Ko’olina).  The new town of Kapolei is about 25 miles west of Waikiki, but well worth the drive on weekends when there is no rush hour traffic.  Ho Ho offers a Chinese buffet for about $18 that features the most delicious fried (salt & pepper) Dungeness crab legs, extra crispy fried chicken wings, salt & pepper shrimp, steamed snow crab legs, and ahi poke salad.  If you want more than seafood, Ho Ho buffet also has fried rice, noodles, eggplant, egg roll, crab Rangoon, sweet & sour pork chops, beef & broccoli, chicken dishes, etc, etc..  Dessert is limited, but the soft-served vanilla ice cream is a good palate cleanser.