Some of the only horror films I will allow my wife to watch.
Absolutely timeless. Taste The Blood of Dracula was a favourite growing up and remains so for nostalgic reasons, even though I can acknowledge it's definitely not the best of their offerings (I'd have to give this to one of their more cultish, non monster horror films).
I think the only really terrible one I ever watched was one of the Mummy sequels... can't recall the name but something more related to magic than a shambling guy wrapped in gauze.