Which of these people is the most likely to gain a lot of support?

[Maxwell]

If Perry weren't running a zombie campaign, I'd say him. For now, I'll say Santorum - there's a small possibility that Trump, Carson, and Cruz all implode before Iowa.

[Maxwell]

Graham could have some sort of top-secret South Carolina GOTV plan that propels him to a respectable finish in the Palmetto State.  Finishing in the top 3 would be seen by the media as some sort of miracle, and they'd probably through him around as a "potential nominee" or "rising star" for a week or two after that.  For that reason alone, I think Graham should top this list - all of the other candidates just don't have a viable path, Graham has a highly unlikely yet possible path. 

It wouldn't be a miracle because South Carolina is his home state.

[Maxwell]

Graham could have some sort of top-secret South Carolina GOTV plan that propels him to a respectable finish in the Palmetto State.  Finishing in the top 3 would be seen by the media as some sort of miracle, and they'd probably through him around as a "potential nominee" or "rising star" for a week or two after that.  For that reason alone, I think Graham should top this list - all of the other candidates just don't have a viable path, Graham has a highly unlikely yet possible path. 

It wouldn't be a miracle because South Carolina is his home state.

A top 3 finish by Graham in South Carolina would be seen by the media as noteworthy.  It would generate some decent buzz for the Senator. 

Well it shouldn't be. For all the talk of him being an established presence in the state, it should be embarrassing if he's not winning it. Tom Harkin had no chance at the nomination and won Iowa with a percentage in the 70s.