one meeting i've gone to several times is very different from all others: it has no steps or traditions hanging on the wall, no reading of "how it works", no handholding for the serenity-prayer at the end, just a circle and sharing of whatever is on anyone's mind.
i was told the person who started it wanted a meeting that simply went back to basics of alcoholics sharing with each other.
and none of the meetings i've checked out (there have been at least a dozen different ones) has had any prayer other than the serenity one. i'm thinking the Lord's Prayer reading seems an American thing...haven't heard of it up here at all. much more secular country.
but re that meeting i mentioned: i have no way of knowing if anyone there is a freethinker; from listening to the shares, i think most people there do more "regular" AA in addition to this particular meeting.
and if there is an agnostic meeting here in Vancouver, i haven't found it. it's not listed anywhere.