According to Rolling Stone Magazine:

Greatest Singers of All Time
1. Aretha Franklin
2. Ray Charles
3. Elvis Presley
4. Sam Cooke
5. John Lennon
6. Marvin Gaye
7. Bob Dylan
8. Otis Redding

Greatest Artists of All Time
1. The Beatles
2. Bob Dylan
3. Elvis Presley
4. The Rolling Stones
5. Chuck Berry
6. Jimi Hendrix
7. James Brown
8. Little Richard

Greatest Albums of All Time
1. Sgt. Pepper's Lonely Hearts Club Band - The Beatles
2. Revolver - The Beatles
3. Rubber Soul - The Beatles
4. Abbey Road - The Beatles
5. The White Album - The Beatles
6. The Dark Side of the Moon - Pink Floyd
7. Pet Sounds - The Beach Boys
8. Highway 61 Revisited - Bob Dylan
9. Thriller - Michael Jackson