I would recommend Flying Fish; the new chef there is much better than the former one. He's much more inventive, and even our server told us that, in 25 years of working in food service, he is the best chef she's ever worked with. I wouldn't go that far, but he's very, very good!
We haven't been to Jiko since Chef Annette left, but she always underwhelmed us. Perhaps the new chef will turn it around, though, as we weren't really Flying Fish fans until this new chef came along.
Cheers!
Heather W