interesting topic...but one thing stood out to me.
It's hard to find a person who has no judgements for or against any religion...let alone get that person to lead the country. To me, what makes a person judgemental is not only the religious belief that they have, it lies more deeply within the beliefs that they've built up ever since they were a kid. It doesn't matter if you're religious or not, you're gonna be judgemental. No matter WHO you are. You can have no religious affiliation and still be extremely judgemental (perhaps towards those who DO have religious affliations).
What makes good presidential or leader material is someone who can weigh their own beliefs and desires with those of all the people they are leading and come up with decisions that way. Someone who actively looks for the whole picture and is not afraid to be criticized or be wrong. Someone who understands that not everyone will be 100% happy with their decisions but makes them anyway, for the best of everyone's interests. What religious affliation a person has, has very little to do with any of that.