S-tier
RE, RE2, RE3: Nemesis, REmake/REmaster, RE4
A-tier
Rev 2, RE7: Biohazard, RE2R, RE4R
B-tier
RE0, RE5, Rev 1, RE3R, RE Village
C-tier
CV/X, RE6
I want to replay Rev 2 because I haven't played it in years, and so memory might be distorting how much I enjoyed it. I might bump RE4R up...