If MM1s answer was no good, then I don't get the question either.
IME you can get just about any knife (made of decent steel) wickedly sharp. It is just that some obtain an edge easier, and some hold it longer. Other than that, wicked sharp is wicked sharp. Hard to tell which is sharper of 2 knives that will both shave hair, and at that point it really doesn't much matter, IMO.
I would say carbon steel gets sharper than stainless, in general. But that is just my opinion with no scientific research to back it up.
I would also say cold forged knives can be made very finely grained, and are capable of superior sharpness.....
