My choice for GOP candidates who might win the nomination!

 Of the remaining candidates still running for the highest office on the GOP side in late October, I feel that by December 2015 there will only be a few likely individuals with a real shot at winning the nomination. (And, it not that the other individuals are lacking, it's just that I feel they suffer from one or more 'fatal flaws' that will not allow them to go the distance)! Note: If I had to choose a fourth, it would be Marco Rubio. What say you?