After more than one hundred years of horror cinema, reasonable people still disagree about who is the greatest horror star of all time, but most arguments tend to boil down to Boris Karloff vs. Bela Lugosi. While the versatile and inimitable Karloff may have boasted the more robust and impactful career overall, the dark and mysterious Lugosi—despite a legacy that ultimately degenerated into self-parody and forgettable schlock—may have delivered the single most iconic horror performance of all time…