Stefanie Wai: Tonkotsu ramen is the famed choice here. Lives up to it. Also try a portion of their unagi nigiri - guaranteed to order another portion as soon as it hits your lips :)
Sydney Low: California-style Japanese in London. The sashimi and the items on the Roka News menu is better than the grilled items. Fresh wasabi grated at the table is a very nice touch
Papa Shango: Amazing Japanese Restaurant. One of Londons best kept secrets (until now!) just please dont tell too many friends about it! Lets keep this one a special secret!