With an Xplore binding:
The FT62 turns very nice in low to moderate angle slopes in good conditions. When it starts getting bumpy, icy, or steep, it's not as stable (for me.) It kicks and glides okay but not great. But definitely okay. I'd like scales on a set.
The Gamme 54 kicks and glides really well on low angle stuff. It handles a few inches of snow well and fits in tracks. For a true double-camber ski it will turn pretty well. But that doesn't mean it turns well, only that it will turn, with some persuasion. I wish they made a scaled version. Go ahead, hate me!
The Objective has scales and excels as a mountain bike-ski but K&G ain't for beans. But it turns so nicely and is just a joy in some deep snow in the woods. I may get myself in hot-water and get a set of Transit bindings. The TxPro is a lot of boot for that ski but, man, you might really be able to push that ski around in the backcountry and of all my boots the TxPro fits the best. All day comfort.
There are many, many, many other skis and new stuff coming out all the time. My dream would be a fusion of these three skis with a Transit bindings and an unobtanium light weight TechToeTele boot. I know if such a ski exists (I know the boot doesn't) and it probably can't exist. There are too many competing requirements. But what gets close? Right now, the FT62 works the best across a wide range of conditions and use cases but is there something better? For now it would be on Xplore/AlfaFree or Alaska. And it should have scales. Everything should have scales!

I don't own anything by Fischer or Madshus and maybe I should.
BTW, I'm looking out my window at work and there's white stuff on the mountain tops...