The fact that Frankenstein and Bride of Frankenstein are both about 1 hour and 10 minutes each, total time 2 hours and 25 minutes total, really they are one movie all together.  And if that was the case could argue it would clearly be #1, and really visually it is not close.   Still I go Frankenstein just because of the use of sound, clearly could not in Nosferatu, but hard to compare movies with sound and then one with zero sound.   Hard to argue against the original Nosferatu for its