Choosing a God to follow is not like a lottery where you are guessing and later win or lose. If you are genuinely seeking truth then you will constantly dig into what this world offers and distinguish truth from trash. Yes there are a variety of religions who need to wake up and question what they are doing. Those who don't are caught up in efficient religion not faith-based religion. But even when historically a religion screws up and goes off the deep end like the crusades -yes, the church was screwing up as a whole driven by worldly greed not biblical principles -it's unfortunate that we have to wade through man's foolishness corruption to find real truth.
Pascal's wager: You are right that following a religion can be pretty messed up. Religion is what you do on Sunday. It's the checklist of rules and traditions you decide to abide to. What you are supposed to do is find a "faith" that is a solid place to stand. Then you can go looking for an institution (aka "religion") that tries their best to live that faith in a concrete way. Not everyone that believes the Bible to be true does what it says. But if the Bible is truth that is where you start, and find your daily footing.
Regarding Pascal's Wager, he states that you have everything to gain and nothing to lose. I fear that you might be nitpicking about what Pascal considered valuable. I think he is saying that anything worth having, anything of high honor, of high praise of high joy that this world offers is more likely to be gained on the path of believing in God.
Believing in God often yields strong communities, common goals, positive thoughts, good advice, outward/selfless actions, etc.
When he says you have nothing to lose he doesn't mean you won't lose anything. He just means of all the things you will lose they are in fact worth losing.
By Pascal's thinking, whatever you DO lose won't remotely compare to the value of what you gain by believing there is a God
So if you are concerned about pork and whiskey Pascal would tell you that there are far better prizes to be had and that you should forget those things for what you will yet gain.
What will you gain? He doesn't say, but for some reason he recommends wagering your life on it. And who risks their life on a wager that doesn't have an incredibly better prize?
I personally believe in God and the hope in Christ for 30 years. May not mean much, but I'd testify to Pascal's Wager being the most rewarding bet you can make.