I love both films/characters, but I'd have to go with Phibes if for no other reason than it absolutely terrified me as a 7 year-old. Good golly, when Phibes took his "face" off at the end and I saw that skull head -- I was petrified. Love those memories.

Strangenstein

p.s. As a kid I was also fascinated/terrified by certain words, names or titles. Dr. Phibes just sounded scary!