more "universal" powder board

Guys, after an amazing powder Christmas in Mammoth, I started looking
for a dedicated powder board. I ride Nitro Shogun 166 right now and
it's an amazing board, handles hard pack, holds edge, wonderful.
But I was thinking about something longer or let's say, better for powder.
I'm 6'1 and 195lbs. Fish? Prior Khyber? Pow stick?
Or just simply a longer freeride board, like another Shogun 169 or
soemthing else ~172?
Which board seams more "universal": Prior Pow Stick or Khyber?
Khyber is great for tight turns, swallowtail will handle speed better.
Dean from Prior recommends Pow Stick, but Chris says Khyber is "the most fun".
I will not go to Alaska often, but I'm planing heliboarding this summer.
Will Khyber handle treeless open bowls and speed? 165 is the longest,
but it's pretty wide.
How about starting up in powder with such a wide board? Same about Fish?
The tail in swallowtails helps a lot to do that, I guess.
Any comments are welcome


Andrew