I can’t believe people are voting for Ron Paul. Paul may have a logically consistent argument, but he is terrible at defending it in a debate (or an interview, for that matter).
You’re right—Paul is underwhelming in his delivery. Newt is a brilliant debater, but he has too much baggage, so he wouldn’t have the audience behind him. Cain is charismatic, but I’m not confident about his grasp of world events or the Constitution. Paul is the opposite of charismatic, but he has a certain calm determination to get his point across, and he usually manages to do it, no matter the circumstance.