I know I would never wear chucks again in my life, because they are so uncomfortable. If I were buying chucks I would pay more for the comfort alone. The name has nothing to do with this.
I've worn both and don't think that there is any real difference in comfort, unless you remove the JV insole and put in one that's actually good. In fact, I prefer the chucks insole b/c over time it takes on the shape of your foot. As far as materials being crap - chucks are just rubber and canvas - how can this be crap, and how can JV's, made from the same materials, in China, be considered any better? But whatever, if people want to pay double b/c some dude put his imprimatur on a classic, more power to them.