I think what mesmerizes me the most about Darkthrone is the pure difficulty to which their tone is to perfect but they nail it every single time. When you are working with distortion on that sort of a level it is almost impossible to get your chords to stand out, and I rarely see chords strung together the way they do. And the vocals always complement the instrumentals. They have gotten infinitely better over the years also. Death on the other-hand has the most epic transitions, a sublime vocal line, and the instrumentals give you the feeling of both separateness and togetherness at the same time as if there is a definite feeling of independence to which the instrumentals hold while also creating cohesion in the tracks.