I know its not the 80s anymore. Big racks and FX loops inside of other FX loops may be out of fashion, but I still think the really complicated rigs are quite interesting in the possibilities they allow for. The top 3 I can think of off the top of my head are Allan Holdsworth, Robert Fripp, and Eric Johnson. Eric Johnson's rig has a lot of weird routings and such, but its also pretty transparent. The post-mic stuff and the personal monitor and mixer system I think is the most complicated part. Holdsworth's rig is a lot more esoteric... there's always some mystery shrouded around it, as there aren't many shots of it around... and there are rarely any constants (other than he always has some yamaha gear in there). Any AH rig experts feel free to chime in on insider knowledge. Fripp has always been doing his own thing. In the early days, his rig was very small, but complicated. Big muff or tone machine running through a tape delay system. Nowadays he has racks as far as the eye can see... most of them do things that nobody understands. and of course there's john petruccis rig from the psycho excises videos... any other rigs of interest??