I tried HD800, most people found comfortable but not me. The pads are way too thin and clamping all around my ears.As for the sound signature/quality, yes, nothing beats LCD2, I found HD800 too artificial and lack in the bass department. Felt like all other Sennheiser headphones HD650, 600, 595 etc. (I test them all).But I am going for the sound signature as "another" collection headphone
And, lastly, for me LCD2 is very uncomfortable, the way the pads are designed is that the real is thicker than the front and clamping the front of my ears which eventually gives me a headache. Can they design headphones like Denons ?