Well, I think Santorum is good on principles, but he is just not a very good politician, similar to Akin. So, yes, he probably would have had some stumbles. More importantly, he just doesn’t have the right personality to win a Presidential race. He hardly ever seems fired up himself, so it is hard for anyone else to get fired up about him.
Romney does not get too emotional about Obama's attacks, but instead he and his team coolly and calmly plan and implement their rebuttals and counter-attacks against the Obama campaign. Romney has a very strong, positive, disciplined mind and he's a great counter-puncher against the extremely negative Obama campaign. Obama's campaign relies mainly on distortions and half-truths, and Romney just doesn't get too bothered by Obama's nasty campaign. Instead Romney counter-punches effectively and stays with a disciplined plan that started in January and goes all the way to election day. Newt is also mentally tough and a great counter-puncher, but I think he just has too much personal baggage to win a Presidential campaign. So like him or not, Mitt Romney is the strongest GOP candidate to run in this election against Obama.
He [Santorum] hardly ever seems fired up himself, so it is hard for anyone else to get fired up about him.To quote John McEnroe, "You must be joking." :) He was so fired up there was an issue in that regard (his wife had to tell him to "cool it") as he was coming across as a loose cannon, which he somewhat is. That being said, Rick wasn't perfect, but he would have been IMO about 100% better than Romney. Rick had (and still has) a great deal of prayers said for him too; I won't be surprised to see great things from him now and in the future.