No. You can make an argument that they have the strongest folding knife lock out there and back it with facts. You can also make a great, although still subjective argument for value (price). From there, your stance falls apart, entirely.
Performance and Strength - Busse, off of the top of my head, has far better and more documented strength and performance. Not just from marketing, either, actual users. There are plenty of documented cases of 20+ year old Spydercos, Benchmades, and CRK knives still going strong. CRK even lets you break down and maintenance your own knives.CS, while as rare as any other top company, still has plenty of documented cases on these very forums of sudden, unexpected failure.
Quality - I don't see CS winning any quality awards. I don't see any users raving about elite tolerances or fit and finish, either. Not to say they are poor quality, as that is not the case. Where is your evidence that proves they are "the best" quality? Please, use sources, not your opinions.
Materials - Not even defensible. CS has only just recently begun offering high quality steels for their blades, while others have been doing it for over a decade.