My way of thinking is a razor is a cutting edge. What's attached to that cutting edge doesn't matter because your face only sees the edge not the rest of the blade or the scales. If it's proper sharp any razor will give an equally good shave no matter the size, shape or grind or age.
Does that mean YOU will get the same shave from every razor? No, because all those other factors involve you and the way you interact with the razor. Add to that just personal factors and daily changes in your mood and health.