I am almost material engineer and I can say that there is not anything like better material for something. It is always better in one way or the other. Everything has it's pros and cons everytime also even though some material becomes more and more used in certain areas. Think about it this way. Will we suddenly stop printing books when we can have all of them in digital version? Or did we stop using bikes when car was invented? Some characteristics of materials also can't be easily compared by numbers.
And when it comes to knife steel. Use what steel suits you or what steel you like. Same as sometimes using wood can be way better for certain uses than using high-end composites. So called super steels are good in these three circumstances below in my opinion.
1) EDC that you don't want to think about when it comes to sharpening.
2) Some steel could be "best" in one way, so it's best for some types of use.
3) When you really need high edge retention because of cutting materials that would make edge on other steels unusable after couple of cuts.
And when it comes to knife steel. Use what steel suits you or what steel you like. Same as sometimes using wood can be way better for certain uses than using high-end composites. So called super steels are good in these three circumstances below in my opinion.
1) EDC that you don't want to think about when it comes to sharpening.
2) Some steel could be "best" in one way, so it's best for some types of use.
3) When you really need high edge retention because of cutting materials that would make edge on other steels unusable after couple of cuts.