Eric Gordon in Billy Madison. Sandler movies have been downhill ever since his very first one. Lack of a good villain like this one is a big reason why. Far more important to this movie than Dean Wormer was to Animal House
Nurse Ratched. One of the very best movies ever almost wasn't made because they couldn't find an actor willing to play such an evil role
While RoboCop is perhaps the greatest movie ever, the real villain was the post-apocolypic city of Detroit
Amon Goeth in Schidler's List could make the list. Well acted and no movie character could ever be more vile, even if the real villain was Nazi Germany
If Eric Gordon is not number one, Kevin Spacey in Usual Suspects would be. No other movie has ever been able to blend such a great hero and such a great villain into a single role. Plus it's Kevin Spacey at his best