What gives a religion the right to claim their fantasy is correct and the rest false?

[robvalue]

OK, here's a question for Pete. And any other theists who want to join in.

In what way are you acting differently when doing what God expects from ignoring what he expects? What do you do as extra, or refrain from doing?

Morality is incredibly important to me, and I'd like to know what about my behaviour is immoral, and why. I've achieved it all without needing any sort of religion or God. I just use reason to decide the best way to act, for the good of people and animals. If that's what God expects of me, then great. If he expects me to compromise that to make him happy, then no dice. I think he can look after himself.