I am an admitted system 3 fan...
Sherman tank reliability for the most part, quirky layouts/rules/art/themes.
However...
They were seemingly 10 years behind everyone else at the time, there is a monopoly on parts and manuals, quirky layouts/rules/art/themes, and let's face it: put an "A" list sys 3 (is there such a thing as an "A" list sys 3 ?) next to a "B/C" list B/W from the same era, and tell me which one you ae going to play every time? They aren't even in the same league.
Carguments aside, I've heard the comparison made that if B/W was Cadillac, then DE would be Hyundai...but what would Gottlieb be? I'm not going to say Yugo, but I would say 80's General Motors C-10 trucks; rock solid, but otherwise, spartan.