By perfect - I mean what albums that you've heard, that has perfect pacing, none of the songs are boring, and that keep you entertained the whole way through.
I'm currently listening to the Wall, and it is just awesome. But my favourites are probably The Downward Spiral by Nine Inch Nails, Self-Titled from Blink-182, Fantasies by Metric, OK Computer AND In Rainbows by Radiohead, and Wasting Light by the Foo Fighters.