I don't necessarily prefer playing villains. I know a lot of people say they are more fun, but if the scriptwriter has done their work well, you can find something realistic in a villain and find the mistakes in a hero - it's all down to the writing.
Sentiment: NEGATIVE
Both villains and heroes are a bit boring, really, unless they're flawed and broken somehow. If they're not flawed and broken, then clearly they need to be broken and made flawed. That's what an author does if he or she has any dignity.