Why do people ignore square bodies?

[WyattTX]

In notice people speak highly the 67-72, and GMT400. But the square body is just talked about like it is just another truck. Other than that dumb government, and media frenzy over the "side saddle" gas tanks, what is really wrong with these trucks? Mechanically, it seems just as good, if not better than its predecessor. If you count the EFI trucks made in '86 and '87 they might have a fighting chance against the gmt400. Could someone explain the square discrimination? Thanks.