Here, in my humblest of estimations, are all 14 of R.E.M.'s albums of original material ranked in order from best to not best (because you can't use "worst" when describing a band the magnitude of R.E.M.).
1. Life's Rich Pageant
2. Automatic for the People
3. Accelerate
4. Green
5. Reckoning
6. Out of Time
7. Document
8. Murmur
9. Monster
10. Fables of the Reconstruction
11. Reveal
12. New Adventures in Hi-Fi
13. Up
14. Around the Sun