I owned both versions of the 120 macro. It was a great macro lens but I didn't like it for portraiture. I sold the autofocus version because I always focussed it manually and the manual focus lens was much cheaper.
The 35mm that I had was really sharp and I prefer manually focussing a wide angle. I never owned the autofocus version to compare to it for sharpness. I never heard that the FA was sharper. You learn something new all the time!
The manual focus lenses do seem to be better built then the FA versions.
I did own the manual focus 45mm and 55mm lenses and also the 400mm FA but I flipped them and never shot film with them. I also owned both zoom lenses. I didn't like them because of the weight. I'm not really a zoom guy although I do own one for my digital camera for shooting sports.