Replying to Powder Skiing

So I'm off to Japan at the start of next year, and have decided that I need a new pair of sticks for the bottomless powder over there.

I'm 5'10 (178cm) and 75kg (165lbs) with a reasonably fast and fluid style. I'm not necessarily a park rat but I like to jib around the mountain throughout the season. Therefore I want a ski that is playful enough to spin and muck around in the powder. I'm not looking for an all mountain ski, but more or less a twin-tip powder based ski (110mm+).

I have visited nearby ski shops (+online) and have narrowed down a few options:
1. Line Magnum Opus
2. Line Mordecai
3. Armada JJ 2.0
4. Atomic Bent Chetler

I don't have a price budget at this stage and open to any brand of ski; as I feel quality is worth it.

Cheers!