Don't get me wrong...all those brands all make good tubing and I would recommend any of them to anyone, especially over crappy hardware store tubing.
Although, in fact, Home Depot does make some good stuff that is thick, clear tubing and seems similar to Tygon ('Watts' branded, I think?), but I don't really know if it is simply just thicker vinyl or is actually developed to higher standards like these other brands. I've used this stuff for home beer brewing misc. tubing and have been pretty happy with it so far, especially since I'm dealing with fluids between 140 F and 200 F.