These are 2 completely different skis. One is new and deep snow, one is all-mountain. As an example: today at Squaw, early first few runs was wind-blown in, relatively smooth, kind of heavy. Bigger skis here, the S7, would have been the ticket, although the Shogun would have been fun too, just not quite as fun, as it can get bogged down in heavier snow. In Sun Bowl, where it was heavy, untracked snow, the bigger skis are probably better as well; you don't want to be fighting a release out of that heavy paste. Once it got tracked out a bit, skiing soft chutes, the Shogun would have come into it's own; much quicker edge to edge, more confident in skied-off steeps. And, later in the day, when the mountain was getting bumped out; no question the Shogun is a superior ski. We were lapping Chute 75; Most of the locals were on their ~100mm skis at that point; which handle great in soft bumps. I was on my MX108's in the morning, and swapped out to the Sultan 94's PM. I think I had the right skis for both the soft AM snow and the tracked out, bumped up PM snow. Judging by what most of the locals were skiing, that seems to be pretty common in Squaw.
So, it depends on what you ski more of. Shogun is much "easier" in bumps and steeps; you have a tail to work with; it is quicker to move from one edge set to another; you can expect the tail to "pop" a bit when you are at the end of the turn as you reach down to plant and move the COM over the skis for that next turn, helping for much quicker edge changes. The S7 will be easier in soft snow, much slarvier, turnier, and have a short contact length when the snow isn't deep. You need a good amount of snow to really make it do it's thing; it is a struggle in steep Tahoe-like terrain once things get skied out.
Judging by what I saw today, it looked like the Shogun was the official "daily driver" at Squaw. Lots of Mantras and Legend Pro Riders as well, especially on the feet of the guys that ski 5-6 days a week.