Idunno. I'm probably gonna get blasted for this, but in these debates, I have not heard Ron Paul take a single position I disagree with, except in foreign policy. If I had to choose the person on that stage that I trust the most to be exactly who they say they are and appear to be, it would be Ron Paul. If I had to choose those on that stage with whom I am most ideologically aligned, he would be in my top tier.
I think Ron Paul's appearance, voice, and demeanor have become his reputation, and I think that the establishment has demonized and marginalized him successfully. Lost in both dynamics, is the fact (IMHO) that if this man looked like Mitt Romney and resonated like Sarah Palin, yet held the exact beliefs and positions that he holds (aside from his abandonment of Israel), he would be our nominee, hands down.