Hi Gareth, Joe Bataan my fave on "Crystal Blue Persuasion" like you suggest hard to make a mess of that song really. "Aint No Sunshine", best for me by a mile is Isaac Hayes 17 minute performance, live at the WattStax concert in 1972, done only the way "Ike" can, great vocals, fantastic rythmn backing from the Bar-kays while Ike delivers one of the greatest saxaphone solo,s you will ever hear, and while the whole 17mins absolutely flies over, it dawns on you this wasn't meant for whitey, its soul at its blackest and most defiant, incredible!!
Kev