Any real shop will tell you that ideally you should have 2 boards you're everyday do anything or park stick and a specialty pow stick.
Japans pow is real light and fluffy and they get heaps of it. You'll either want a rockered board or something with a good amount of taper to it if you go that route.
Boards I'd consider on that note would be the Never Summer Summit, Atomic Radon CT, Prior Kyber, Burton Fish, Burton malolo, lib tech snow mullet, rome notch, K2 Gyrator, K2 turbo dream, etc. etc.
Now if you're going with an all mountain freestyle board that can handle it all you'd want to at least consider a rockered board like say the never summer sl r, k2 turbo dream, possibly one of the lib techs like the trs.