Like many readers, I'm a big fan of Didier Ghez's WALT"S PEOPLE books, they are not only a fascinating read but very inspiring. In volume 2, there is a great interview with Floyd Gottfredson by Arn Saba in which Floyd mentions his preference for the later Mickey strips.
I can see his point in terms of style and streamlining, but there really is a charm in the Mickey strips of the 30s. Part of it for me is how the drawings really reflect stylistically on what was happening in the shorts at the time, and when you come right down to it, Mickey really is the perfect graphic design. Unmistakable in any way.
Let me know if you like seeing these strips, I have about 100 of them, maybe I can post one each week.