I saw Bowie play guitar with Tin Machine, he was no slouch. The whole Diamond Dogs album is just him and with all due respect to the many great players he's had (Mick Ronson, Carlos Alomar, Earl Slick, Robert Fripp, Adrian Belew, Nile Rodgers, Stevie Ray Vaughn, Peter Frampton, Reeves Gabrels), it's the album whose guitar playing I like the best. Its stripped down, almost punkish guitar went well with the dystopian theme of DD.