In 1988, I was a junior in high school, and was using:
(1) Top most-used camera? Nikon F Photomic FTN with 43-86mm f/3.5 Zoom-Nikkor
(2) Top most-used film? Whatever Kodacolor film my parents bought, if memory serves it was VR 200.
(3) Top most-used paper? and (4) B&W enlarger, color enlarger, other printing equipment? Whatever the photo labs used then (I did not do my own processing and printing then).