I have heard for as long as I can remember that "pre 64 Winchesters" are better than those made later. Another thread discussing 30 WCF and 30-30 Winchesters prompted me to look at the two model '94's I am the current custodian of. One was built in 1898, the other in 1967. Comparing the two, other than the wood stock I see nothing that would make me say the older is better. The wood is different, as well as the butt plates, but other than that the visual differences are minor. Some things you can see the quality difference, but my untrained eyes can't pick out anything other than a couple dollars difference in the stock that would make me say one is better than the other. I know the old 94 has a higher dollar value than the "new" rifle, but the new rifle has a higher sentimental value to me since I was standing by dads side when he bought it new at the local Ranch and Home store.
From what I've heard the model 70 suffered in quality and workmanship in those years, but I'm not seeing it in the model 94.