Start with a prior based on your subjective view of the world and perform Bayesian updates based on evidence (e.g., the bible, koran, or currently unexplained miracles), same as you make other decision.
I just find this cheap dismissal of Pascal's wager to be mathematically nonsensical. It's almost surely not correct that the probabilities of all gods (real and honeypot) exactly cancel and therefore atheism is the correct choice.
Even if at some time those positive and negative utilities did cancel, even a small amount of evidence would shift the balance of probabilities pushing you back into Pascal's wager territory.
Since no data has ever been collected that would indicate existance of any god the only thing you can assume (thhough you shouldn't) is that they are all equally probable and since their number raises in time I'd advise you to pick the one that offers infinite reward for believing in him. I you don't know about such god just make one up. Of course that does not guarantee you infinite expected utility of your choice because someone could make up infinite number of gods. I'm pretty sure at least one person already did. Thus driving probablility of your god existing to exact zero and making expected utility of your choice indeterminate. Still you're better off than believeing in a god that offers finite rewards.
Of course you may just correctly reason that in absence of data you can't assume anything about gods and save yourself all the thinking about gods as devoid of any predictive utility.
