In BKK, Zuma is the best IMO, in fact the best I've been to anywhere; they bring food to your table, extremely well presented and high quality. Kempinski also v good, but both these are expensive. JW Marriott (Tsu/Nami) used to be excellent, haven't been for a while, but last time felt prices had gone up & quality down; very Japanesey (as is Zuma), of course, & not cheap. Significantly cheaper are Millenium & Radisson Blu - ok, not great. The better Indians (Punjab Grill, Indus, Maya) do Sunday brunch as well; look like it's going to be good value, but disappointing; food nowhere near as good as served in the evening.