I tend to like villains more. And it's not because I aspire to be evil, or anything!

A good villain will set chills up your spine, make you nervous, and possibly shock you. I like a great villain in a story more than a great main character, sometimes! (although, all the characters are important, I prefer a good villain with a decent hero to a bad villain and a good hero)

That's my resoning. The Villain gives you purpose.