I will definitely have to give the analogman stuff a look, and yeah, I have read about the interaction thing, which is common on the early designs, though I don't think the Big Muff has that, and for more people when they hear "fuzz" that is the first thing they think of. I will definitely have to give Analogman stuff a look, as I definitely have heard fantastic things about their designs.
It is also very interesting the different ways that people use the same pedals. Like, is a fuzz designed to work with a clean amp, or one that is already fairly dirty? I see the same thing with a lot of "Marshall" type overdrive pedals, where half the demos I see are people running them into a plexi that is already breaking up.