This is a toughie.. I know one of my all time favorites is one of the 1795 ones where the "Good Reverend Trask" gets walled up alive by Barnabas ala...The Cask of the Amontillado.
The Adam storyline was interesting..at first, but it dragged on entirely too long.
One lovable rogue, was Jason McGuire. I was rather sad he never reappeared.
Jonathan Frid and David Selby are favorites, but someone who made the show was Grayson Hall in all of her characterizations.
Whatta gal. I love her "Lillian Gish" moments.
A fun note, in the early episode #245 Doc Woodard repeatedly refers to Dr Hoffman as "him" or "he".
Obviously the Dr. had not been entirely cast yet, or Robert Gerringer who played Doc Woodard messed up.
My Name is Frater Corvus.
This has been a Dan Curtis Production.