Sort of a tricky question because I use those sets as fillers for items I don't want to shell out bigger bucks on. In pure muslcal terms for rock, I would choose things like the Byrds, the Jefferson Airplane, etc, but I have that music in nicer configurations. Same with jazz, of course somethng like the Coltrane is great, but I love the "Heavyweight Champion" box, so don't have any use for the OAS set. I buy these sets for things like Jean-Luc Ponty Atlantic albums, Charles Wright and the Watts 103rd Street Band, Tower of Power, Bad Company, etc.