I don't have any experience with the Belafonte but I do have alot of experience with the Bibbys. If they're anything alike, be prepared for one of the best skis you've ever ridden. The bibbys, while they are classified as a pow ski, are one of the hardest charging big mtn skis i've ever personally ridden. Super solid construction, amazing floatation in fluff, and its edge hold on hardpack is crazy for a ski of that caliber. Would highly recommend that company to anybody, they make an amazing product.

The Belafonte is a big mountain specific ski, actually. They're stiff. They charge and tip rocker lets you go over anything while triple camber underfoot grips and holds a good edge when you need it.

Here's a vid with some more details:

https://vimeo.com/137402497