Best: "Electric Ladyland" - Jimi Hendrix Experience
Worst: "Virgin Killer" - The Scorpions
I don't know; I still thing that Virgin Killer is a cute picture. I mean it's just a body. They even did that 'shattered glass' effect to cover her umm, umm, "lady bits" but to even imply that such a young girl's vulva is lady bits would be to imply that none of us has ever changed a girl's diaper before.
On a similar note we have one of my fav albums of all time. Nirvana, Nevermind.
Also love several of Rob Zombie's covers.
BTW the naked woman in most of his covers is his wife Sheri Moon Zombie.