actually bill nelson left behind music and had his biggest success musically w be bop deluxe
http://en.wikipedia.org/wiki/Be_bop_deluxeearl slick imo was a better sidekick to bowie than mick ronson at least style wise
http://en.wikipedia.org/wiki/Earl_Slickjohnny marr, i think all you have to say is the smiths
http://en.wikipedia.org/wiki/Johnny_Marrand when you think of the pretenders honeyman scott was that choppy howling background for the amazing chrissie hynde, who also was a guitarist just not a great one.
that was the only point i was making. if you are calling john lennon a great guitarist and put him on that list, someone great at that instrument gets left off. no one would deny lennon was a great artist but he was a rhythm guitarist.