I think the Likeability Factor is overrated in American national politics. It matters more in more local politics where dedicated schmoozers are the usual fare. However, I would rather have a beer with Donald than with Hillary.
Part of it is that I think Donald is educable (and has a long way to go), but she is not. She is a snotty know-it-all, and mostly wrong.
Also, he strikes me as being warm and interested in people, while I imagine Hillary would have half of her attention on the door to see if anybody more important than my deplorable self might come in. Somebody with more money or with higher social status. I think she is that sort of deplorable person.