I'm going to go with John Constantine. While in a sense, he's just a guy who knows a thing or two when it comes to the occult, he's downed more than his fare share of demons and god like entities with wits alone. He even has demons from Hell itself keeping him alive because if his soul were to go to Hell, the top dogs in the land truly down under would end up going to war with each other over it. So basically he's got the super power of pure luck because of this. There's a lot more to him worth reading about but I gotta clock out of work since they aren't paying me to write about Constantine so ta!