Honestly both will excel in pure powder. Both have a shitload of rocker both tip and tail (obviously hellbents have more, but chets still have quite a bit) and very wide dimensions which relates to unsinkability. However, the hellbents are going to be much more of a slow-speed jib ski. The Bent Chetlers will feel extremely playful, surfy, and pivoty (taper), but are going to feel a lot faster and more high performance than the hellbents. I had some hellbents last season and I loved them in light untracked powder, but I got rid of them (now in the possesion of jaredmdub) because the giant tip coupled with the super high rocker splay coupled with the noodley flex just made them unbearably unstable in variable conditions. Also, in heavier powder at high speeds, I could actively feel the ski flexing and pushing against the snow. The lower rocker "plane not plow" tech that line introduced with the opus sounds like a gimmick but it is completely true. I could feel the ski slowing me down and they definitely had a reachable speed limit. The chetlers have a much lower rocker, stiffer springier flex, shark nose, and camber underfoot. This will translate to a much faster, higher performance ski while still being super fun and playful and buttery. It will also cut through chop much better than the hellbent, as well as railing much better on groomers. Both are great skis, but it really comes down to what you will be using them for to make your decision. Grab a pair of hellbents if you want a pure powder ski for huge deep days that will have unparalleled floatation even at slow speeds, albeit with a speed limit. Grab a pair of bent chetlers if you want a powder ski that will excel on deep days, but also when things get tracked out and you see yourself both jibbing and charging lines. The bent chetlers are hands down a better all around resort ski. I would give the [slight] advantage to the hellbents for real deep days.