Nearly all of the makers and manufacturers we talk about and like here use perfectly acceptable steels and heat treats. Sure, one steel might be might better than another, and someone's heat treat might be better than someone elses, but the differences aren't that extreme. And, on top of all that, each person's experience and how they use the knife can change the results or how the knife's performance is perceived.
If you gave 5 great chefs great produce from 5 local farms, would their dishes all be good? Probably. Could you pick a personal favorite? Most likely. Would your buddy have a completely different favorite than you? Possibly.
We are in the upper echelon of kitchen cutlery, in materials and manufacturing. Most everything will be acceptable. Just buy knives in different steels and from different makers, because you can. Only real way to find YOUR best steel or heat treat.