Banjoman...in all those categories, they are much too broad in my estimation. For instance, classical: I'm partial to Baroque and here you cant go wrong with Vivaldi, and not just The 4 Seasons, but things like his mandolin concertos. Julian Bream for classical guitar, and not the orchestral pieces--too much orchestra and not enough guitar.

Jazz...again, era/style important here. For me it's 50's west coast stuff, solo to quartet. Classic Mulligan/Baker sets, Paul Desmond with anybody, Barney Kessel for guitar and Laurindo Almeida for both jazz and classical. He did some great stuff w/Bud Shank.