As far as Satch is concerned, have you ever seen him play live? I'm not going all Satch crazy here (I like Vai and Johnson better), but the guy is pretty phenomenal. If you listen to the way he phrases, the way he works in and out of harmonic content (polychordal/atonal improvisation), his interpretation and ability to stress and release his solos at exactly the right times to fit with the band (live, he's incredibly cognizant of what the band is doing around him). He truly is an amazing player. The funny thing is, I don't particularly care for his studio albums, but just go onto youtube and listen to his live work and he stands the test to me.