Slipkid - a few years ago I sat down and listened to all the versions of Rattlesnake Shake that I had at that time, both commercially-released and bootleg:
http://ledge.fleetwoodmac.net/showthread.php?t=14620
In the end, my two favorites were the same as yours
And I agree about watching Peter's expressions during that "Playboy After Dark" video clip!