Lovely pictures from a classic lens.
A few comments: my impression is that the earlier 80-200/4.5 models suffer less from zoom creep. The later versions with the modern styling are looser, and the late AI version with the new optics is very loose. I think the new AI version is a bit better optically as you would expect from more modern design - slightly sharper, a little bit less vignetting (more even illumination) and better contrast (fewer glass-air surfaces). Apart from that the versions are all very similar in size, weight and handling. My only regret is that Nikon did not improve the close focus limit with the newer version, which is a little strange since the E 75-150/3.5 and AIS 80-200/4 belong to the same optical "family" (they have similar designs) and they focus much closer. Of the tele zooms in this group, the 75-150 is my favorite since it is faster and more compact. I don't mind the shorter zoom range, 150mm is about as long as I want to hand-hold anyway. The only real problem with these lenses is that they suffer from longitudinal CA. It would be awesome if Cosina of Zeiss introduced a modern version with better glass and coatings!