I have both an '87 Schwinn Prologue with Tange Prestige frameset and a '92 Miyata 916 with the CrMo STB.
I love both bikes. But objectively, which bike has the better metal technology? Or are they equivalent?
I cannot tell by riding because they are set up differently (one with modern components, the other remaining mostly stock) and because I am not much of a rider (experience, range of bikes ridden etc).