You can't compare the Canon A series cameras with the F series any more than you can compare the Nikon EM with the F2 or F3
Actually, you can compare the EM to a F3 to a certain point. They both use the same metal for the internal structure: copper silumin aluminum. And both were designed by the same designer: Giorgetto Giugiaro. In other aspects, they are quite different.
They are quite sturdy and most are in working order, even after 30 years.