Probably the best real communicators on that stage were Newt Gingrich and Rick Santorum. Cain is an excellent motivator, but Newt and Rick are the best at articulating key concepts.
Got it exactly backwards. Stantorum and Gingrich are great sound bite politicians. They are great at selling other people's ideas. Neither of then has any key concepts or leadership principals nor serious programs.
The only real leader on that stage was Cain. He has a program, a plan for implementation and the communication skills to sell it to the American people.