DRACULA: Who can mess with a classic costume like Dracula?* Also when was the last time it was socially-acceptible for a grown man to wear a cape? This is a prime opportunity!
*Teenagers and Twilight
AGENT SMITH (The Matrix): Even if people don't know who you're supposed to be at first, once you call them "Mr. Anderson," people should be able to get it. We're also a big fan of Agent Smith because his character essentially gives you permission to forget everyone's name at the party.
PATRICK BATEMAN (American Psycho): This one's incredibly easy - especially because we're sure you're already a sharply-dressed, good-looking man. Just carry around a plastic knife and pretend to be a sociopath. If people STILL don't know who you are, just tell them you're Dexter wearing a suit.
THE JOKER (Batman): We're pretty sure we don't need to try and convince you why this would be just the coolest costume.
SEBASTIAN SHAW (X-Men): Fur is making a (slow, but steady) comeback, and this would be a great way to test-drive the look. Also, how many Halloween costumes let you wear an ascot?
Who are some of your picks for "best-dressed villain"?