Calling London Sushi Buffs - U.K./Ireland - Chowhound

Calling London Sushi Buffs - U.K./Ireland - Chowhound: "Calling London Sushi Buffs
Related to my other recent post, I wanted to sound out people about London sushi options to find out if I am missing anything or anywhere notable.
I have become accustomed to really high level sushi dinners in New York where I have lived for the last 2 years as well as on a couple of trips I have made to Tokyo/Japan in recent times. This means that for me the bar has been raised and places I may have previously rated highly in London no longer cut the mustard. Relevant as I am likely to be returning to London full time later in the year.
My sense is that London is not a premier sushi city for the moment (but is improving) and seems to have gone more down the path of 'designerish' Japanese restaurants in recent times. In particular I am keen to hear about places where you can sit at a sushi counter, interact with the sushi chef and do a piece by piece omakase; places where they import fish direct from Japan such as madai (snapper), kinmedai (baby snapper), sayori (needlefish), kohada (shad); places where they use fresh wasabi; places where they are adorning the high grade fish with interesting and imaginative sauce, drizzle, marinade, herb/spice pairings, places with an extensive sake list.
Over the years I have tried a lot of both the usual suspects and also the less usual suspects and favour places like Cafe Japan, Sushi Say, Kiku, Hiro (Ealing), Saki as well as the sushi counter in Selfridge's Food Hall and in the Yaohan Plaza supermarket. In New York, Yasuda, Ushi Wakamaru, Shimizu, Kanoyama and Seki are some of my favourite places.
Any and all insights/recommendations will be gratefully received.
Thanks."