He isn't my favorite candidate (I think it is too early to have a favorite), but I do like how he is pointing out religious hypocrisy.
He has a great point about Trump being so self-worshipping that it's hard to believe he would humble himself before God. While I don't normally appreciate any religious talk by candidates, I think his comments might reach a portion of the country who might listen out of curiosity. All voices against Trump/Pence are welcome, in my view, and his is a fresh approach.
I like it because he's not afraid to fight them head on. BUT, that said, it's pointless because they don't care about hypocrisy. They see it from a different angle (spin) or don't believe the stories so it doesn't affect their judgment. I still think we have a responsibility to keep pointing it out but that can't be the foundation of our efforts against trump.