If the OP only wants answers that stick to her parameters, she needs to write a more informative first post than 'A or B?'
I refuse to accept that I was the one being rude or aggressive when her reply to my question was 'Yes, but that is immaterial. I would like others opinions on the names themselves, not whether we qualify to use them in the first place, ta.'
She very obviously thought I was going to say 'Ooh, you can't use Japanese names if you're not Japanese'. I wasn't, as I don't subscribe to that view, as it happens.
And I know quite a bit about cross-cultural considerations when naming half-Japanese children, so I was interested in engaging with the OP. Jeez, if I'd only known. 