For me it's Pulse, Pink Floyd with the most amazing light show I have ever seen. I don't know how much came directly out of Marc Brickman's head or how much existed before but the circle of movers and the entire iris effect of focusing on the panel jus't cant be beat IMO for the most effective use of moving heads ever. Disc 2 of Pulse, from the second it starts until the last note of the encore is the most riviting 90 minutes if video I've ever seen, I still get goosebumps when they unleash everything on "Run Like Hell"...
Jack
Jack