hey, I spend most of my winters riding in Hakuba.
All of those boards you listed will be fine. Be aware that while we get lots of pow, it's not pow every day, especially if you stay inbounds.
off topic: if you do intend to ride out of bounds, make sure you have 1)the correct safety equipment and 2) take an avalanche course from Evergreen or steepdeepjapan.com
every year we find aussies with no gear and no clue following tracks in the backcountry