I was an agnostic when I attended AA meetings, and am an atheist now. I DEFINITELY had problems with the religious side of it. Everyone told me, it doesn't -have- to be "god," but it had to be something OUTSIDE OF ME, and I didn't believe anything could cure ME but ME - if something else did it, it would always be tenuous.
So, in an odd way, AA cured me - because I knew it was the only KNOWN workable option, I had to come up with my own workable option - which turned out to be simply STOPPING. I still don't know how I was finally able (I'm sure some of the zealots would say it was the hand of god at work against my will, or somesuch bull) - all I know is I just stopped.
Now, if only I could get my AH to do the same.