Great switch riding capability and great powder performance really don't go hand in hand. If I were you, I'd just be looking at all-mountain boards that suit your riding preferences near home. If you're having to plan trips to find powder, take your board and if you get a really nice powder day, then demo a pow stick. That'd be my plan.
"People say that marijuana smoking is going to get in the way of my career. I say to them that on the contrary, my fighting career is getting in the way of my marijuana smoking." -Nick Diaz