I'm sure you've heard this rant numerous times now, but I feel it's necessary to repeat. Darth Vader and the Joker shouldn't even be included in the Greatest Villain competition purely because they are movie villains. Now, there is an argument that they have done plenty of villainousthings invideo games alike, but that's not a solid answer. Although yes, they are in many video games, they were in the movies first. The answer is clear. Their entire fanbase (most of it, at least) has come from their movies. That's right, not only is there an unfair advantage because people will simply vote for them because they enjoy Star Wars or Batman, but the majority of their fanbase was built upon other forms of media -- in this case, movies. Hence the reason they should not be included in this competition.
Thanks for listening to my rant. Help a sister out? DON'T VOTE VADER OR JOKER!