What separates Ron Paul, Mitt Romney, Mike Huckabee on the issues? Please reference your answer.?

Paul, while honest, doesn't really understand people's nature, and his policies reflect this. He thinks the muslims hate us for being in Saudi Arabia, but it is because they are told by the Koran to kill us. Romney really doesn't stand for anything. He flip-flops for different people to get their votes and attacks other candidates with misinformation. Huckabee, being a former pastor, understands people. Also, he sticks with his stances on the issues. He's pro-life, against gay marriage, understands what needs to be done in Iraq, and, while not necessarily what I would do, he can probably solve the illegal immigration issue.