As a nonreligious person, where do you get your moral guidance?

[Belacqua]

All morality comes from religion. I base my morality on my knowledge and understanding of religion, even though I don't participate in religion myself.

I like that idea. But do you believe some religions are better than others when it comes to having a better moral system?

I think Ahriman is right here, though perhaps in an indirect way.

So for example MY morality didn't come from religion, because I've never been to church, and didn't start reading about religion until well into my 30s. Safe to say my morality was pretty much set by that time.

But history didn't start with my parents. If we're of European descent, the culture we live in was shaped, like it or not, by Christianity. We may have shed the religious justifications, but a lot of our morality is directly descended from religion. 

Many atheists reproduce a specifically Protestant view of society, how it should progress, what responsibilities we have, etc. 

Readable book on this topic: 

https://www.amazon.com/Dominion-Christia...626&sr=8-8

As for whether one religion's moral system is better than another's: that's a tricky question, because we are always judging "better" based on our own set of values. That other religion can just as easily judge us.