you guys really want to talk about all-time greatest bassits, vocalists, etc... try these on for size:
bass - charles mingus. undoubtedly the greatest ever. no one can touch him. style, techinical prowess, and a master composer as well. my man chas, the greatest of all time.
vocals - can we really talk about anyone besides ella fitzgerald (and maybe louis armstrong)? really? tell me she doesn't want to make you cry? or jump for joy? you can feel the world in that voice, and we haven't even mentioned techique yet. ella.
don't even get me started on guitarists...