I like personally like both. Of course everyone is rooting for the good guy, but I love psychology and figuring out why people do what they do, so it's always interesting to see the villain's motives. Like in my story, the villain is a Fallen, but I wanted him to come off as sophisticated and interesting. I think he ended up pretty badass, but since it's a first person story, you don't have much to get inside his head since you're going off of the narrator's thoughts. So in my next story it'll be third person and give both the hero and the villain equal love so the villain is much more rounded.