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I have the S3 and there super good in pow and all around skiin 98 underfoot, early rise tip and tail, camber underfoot and its a pretty soft flexy ski.
I havent skied the obsethed but i heard its a little heavy.
I have Hellbents, and they are great for pure powder, but they get knocked around a lot in crud. They are also very soft. Check out the Surface One Life. They kill powder with the massive 3 stage rocker. They are also pretty stiff, and are great in crud. They are very good on groomers (suprisingly), are fun in the park since they can butter super well with the 3 stage rocker. But out of the 4 that you listed, I would say JJs or S3s. Fishgills has JJs and One Lifes, PM him if you want more info.