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Conrad Tokyo from this list.
Park Hyatt Tokyo is great but it’s pretty isolated out in Shinjuku.
The only way I’d argue heavily for it is if you intend to end a lot of evenings in Golden Gai.
Hyatt Regency Tokyo has the same issue.
Grand Hyatt Tokyo is a bit more central and there’s some good food right there but I don’t love Roppongi enough to stay there.