Merzbow
Lots of Merzbow albums sound pretty similar, and I can't tell the difference between a lot of them, but I always like getting new ones and listening to them. They're all pretty much variations on a theme, but it's always cool to hear them. Admittedly, there are some that aren't as good, but for the most part, rating and ranking them seems sort of arbitrary. It's just a matter of either accepting what he does or not. The same holds true for a lot of noise artists, but few of them are nearly as consistent (or successful, obviously) as Merzbow. Everyone knows this already.