My fave (also, IMO, the scariest) was Dracula has Risen from the Grave. I slept with the light on for almost a year after seeing that one. Christopher Lee was just awesome.
Other cherished faves are:
The Abominable Doctor Phibes and Doctor Phibes Rises Again, both starring Vincent Price;
Mask of the Red Death (also starring Vincent Price);
Scream and Scream Again (A Brit film comprised of various vignettes).
I dunno. The old British film makers had a great knack for creating awesome psychological and visual thrillers. Love them.
Actually that was Lee's least favorite of his Dracula films from the 1960’s.
I liked it especially because of that busty barmaid with the red hair and the luscious cleavage.
I was so unhappy when she got killed in that horrible way!
That actress did not star in any other of these movies as far as I know.
Those Dr. Phibes films twisted my brain! Those are two truly bizarre films.