I have looked at many different authors approach to religion and each has a good perspective, but I think none are quite as balanced as Sanderson's.
In general sci/fi authors paint religion in a negative light, though not always. Anne McCaffrey avoids it at all costs. C.S. Lewis has already been mentioned, and though I love his writing, there is a niche for it. Tolkien is a lot more subtle with religion in middle earth, but it is there. Especially in the fall of Numenor.
None of those have the diversity that Sanderson does or tackles the same issues with traditions, doctrine, or belief. I think Sanderson's books are excellent about finding the shape and process and workings of religion. What it does for a person and for a people.
I could wax poetic, but I will leave it at that. I would love to hear what y'all think about religion in fictional works in general. I love the concept of how to believe when the Almighty is dead. Okay, enough geeking out.