One question: why didn't you include Coheed's "In Keeping Secrets of Silent Earth: 3" on any of your polls? Granted, not all the songs on the album are progresssive, but the majority of them are, and overall it's just a really great album. The band has been classified as both Prog and New Prog (difference escapes me...) so I think they fit. Especially if The Mars Volta are included.
I think the two after it are better. All three are great, though.