Kind Hearted Woman Blues was written by Robert Johnson, who did the best version, but for a more modern one, Keb' Mo's is pretty good.
There are about a million songs called Rattlesnake Shake. Which one do you mean? Hell, everyone from Aerosmith to Peter Green to Motley Crue does a song called Rattlesnake Shake and claims to have written one. I think the most often copied one was the one Peter Green wrote for a Fleetwood Mac album, but he's no genius IMHO.
