Why do I think supervillains are cool? It's not because they're evil. It's not because they're rich (although that doesn't hurt). It's not even because they're people I necessarily want to emulate. I'm not a psychopath, and I don't really like hurting people.
The hero never really comes into their stride until they have a worthy nemesis. I always enjoy watching a good supervillain, because I know the battle they bring is going to be epic. After a while, I started to notice that the really good villains have a lot in common, and I got to thinking about why they're so cool, even if they're bad. Why then am I so obsessed with supervillains? Because you can learn a few things from them, even if you don't subscribe to their philosophy of World Domination©.
So without further ado, here's my list of 7 things I think are cool about Supervillains that most heroes don't have.