The first camera's I owned were two "odd ball's" a 35 mm Topcon Uni and a Yashica 635 (that could use 35mm or 120 film). The 120 size was my favorite even though its square I could crop horizontal or vertical. Like WUD mentioned it actually may be better to crop later because of "this or that".
Here is a link to read on a famous image and how the crop was finally made.
Page not found | viz.
Yes there will always be arguments (aka discussions pro and con) it really depends on what you are doing or the moment you can take the image. Just like my earlier post of an image of my granddaughter was a spur of the moment while she was playing. No time for modifiers, extra lighting, it was shoot and crop later when viewing the image on the computer.
Lou Cioccio