Thanks for the wealth of data and explanations. I am already in the top 1% of the general population with regards to knowledge about headphones (as is anyone else hanging out on head-fi), but there difference between myself and the guys who really know their stuff is a lot bigger than I had expected. Knowing *why* things sound like they do is a big jump from knowing what things sound like. We all know Grados are bright.
Seeing the graphs, especially the square sine graph, really helps to visualize that the headphones are not perfect and color the sound a bit, despite being very very good.
I know I would be happy with either headphone, and even with some of the lessor headphones out there (the ones that my friends think I'm crazy for buying).
I too am disappointed I did not spend any time with the LCD-2 at CanJam. Next year.