I know a guy who skis on Sally SX91 Equipes. And he skis well.
My worst boot was some awful thing I had many years ago and I have mercifully forgotten what it was.
My best boot is my current pair of Nordica Dobermann Pros with custom cork footbeds and Nordica two-part foam injected leather lace-up liners. They also have a couple of small shell punches and the soles have been ground for cant after doing a large number of test runs with various shims. They require considerable commitment to get into. No putting them on in the parking lot. They are not particularly comfortable for the first couple of runs, they're cold, and thin socks are advised. It's not easy to get out of them, either, especially on cold days.
But after those first two runs, they're awesome. No pain, and yet my lower foot does not move. At all. I can wiggle my toes, but that's it. When I move, the ski moves. If I want pressure at the tip or tail, I get it. Now. I don't have to unbuckle at lunch. I don't have trouble with my toenails. Despite their stiffness, I don't get shin bang, even when skiing bumps (yes, I've taken them to Mary Jane). And, of course, I do ski powder in them.
The downside of this is that if my stance is off a little, I get spanked.
They have over 200 days on them, and I hope I don't have to replace them for a very long time. I hate buying boots.