Check out the Loudwire list.
Loudwire published a list of all Opeth studio albums ranked from worst to best. Check out the list:
11. 'Heritage' (2011)
10. 'Morningrise' (1996)
9. 'Pale Communion' (2014)
8. 'Watershed' (2008)
7. 'Orchid' (1995)
6. 'Damnation' (2003)
5. 'My Arms, Your Hearse' (1998)
4. 'Deliverance' (2002)
3. 'Still Life' (1999)
2. 'Ghost Reveries' (2005)
1. 'Blackwater Park' (2001)
Loudwire has already ordered albums by Metallica , Iron Maiden , Slayer , Anthrax , Megadeth , Exodus , and Black Sabbath .