You can take a quiz to see which candidate has values which most nearly match yours. There is a scale on the left on which you set the relative importance of the issues, then answer the questions. You don't see the candidates until the end.
I got Ron Paul in 1st at 37% and 1 of 11 categories (Afghanistan war), and Obama 2nd at 24% and 0 of 11 categories. On about half the questions, though, I had to answer "none of the above." Let me know who you get.