Is there a good candidate I should vote for or should I write in Dr David Duke on principle?

I'm Independent and also a White Nationalist. I have already decided I will not be voting for Obama for obvious reasons. I like some things about a couple of the Republicans that are running, such as I absolutely agree with Rick Santorum about homosexual marriage. I have heard some people say they like Ron Paul but I don't know much about him. Dr David Duke best represents my values but he can't run for office. I may however write him in on a matter of principle if I can't decide on another candidate.