Ever listen to Aladdin Sane, Ziggy Stardust and Diamond Dogs? If you like glam rock with a great guitarist, Mick Ronson. Early Bowie wasn't too great, as well as the later electronic and jazz rock oriented music. Stone Temple Pilots were part of the grunge scene with Alice in Chains, Soundgarden and Pearl jam, among others, which were a decent detour from classic rock until it came back around. Neil Young continued in the same style as Crosby Stills and Young with more rock than folk rock. Good lyrics. Gary Moore of course one of the best blues rock guitarists. I would say these are more underrated than overrated.