You say it's an exhibition, not a competition, but you yourself are (or were, I don't know if you still are) "shopping", as it were, for the "ultimate" moral foundation, which I assume would mean the "best", which implies a selection process using your criteria. In other words, your characterization sounds exactly like a competition to me, and the best one gets you as a prize. I can't blame you for that. Why wager yourself for anything less than what you think is best?
As for me, I'm glad you told me they're pretty much all the same, since that means I'm not missing out on anything by not window-shopping for what I already have at home.
The other half of my early life was spent in charismatic evangelical territory (Four Square Gospel, The Door, nice people) and that just wasn't a good fit. Having been formed in the rather stodgy environment of Catholocism where your faith was very private all that witnessing and stuff just didn't sit well with me (not saying it's bad but when you're idea of going to church is sitting down and listening to the priest for an hour people having seizures in the aisles is pretty frightening stuff). It's taken me a LONG time to overcome that uptight attitude enough that I can even discuss religion in anything more than a theoretical level. And I still get twitchy when I see athletes yelling out to Jesus and stuff... with how I was raised it's like they just took their thing out and started wanking right there on TV (sex being the other thing that simply is absolutely private in every way).
That's really the stuff that sent me on my way. But really religion has never sat well on my personality. If there is a God He made me a very self assured self reliant person who has a hard time bending knee to actual people I can actually see and who can deliver quick clear punishment; as for bending knee to someone I just have to believe is there, that's beyond out of the question.
But I still study religions, it's fun. It's an interesting view into how people think and have thought at various times in human history. But now I study them as a third party, I'm not thinking of joining any, I'm just studying them to study (gotta do something with all these hours I'm awake).