It strikes me that there's actually a mix of TWO things being discussed here, although when he first raised the topic, I think JR was asking about our views on the existance of a supreme diety ... and to my mind, that's a different thing than the practice of organized religion.
An old joke I heard first while growing up in Utah concerned a fellow who had died and was being given a tour of Heaven by St. Peter ... as they passed a large building with no windows and a single unmarked door the fellow asked, "what's this building for?" ... St Pete answers in a whisper "Ssshhhhh ... that's the Mormons in there ... they think they're the only ones up here" In recent years, I heard that same joke
with Baptists substituted for Mormons in the punchline ...
Whether one of those or any other, I think it's quite illustrative of the whole problem ... the practitioners of pretty much any particular faith have a strong tendency to look down on those whose views are different as being "wrong" and consequently, inferior.
To borrow and adapt something that was mentioned in one or two of the responses above, if a Supreme Diety (whether named God or anything else) does not exist, the entire discussion is pointless and NONE of these or any other thoughts matter whatsoever ... BUT ... if God exists, it seems extremely likely to my way of thinking that He/She is quite likely to be a non-partisan in terms of the many individual religions and is most likely sitting on high with a glass of divine nectar in one hand, a divine cigar in the other and a smile of great amusement as He/She watches all of us "ants" in the "ant-farm" debating over such miniscule and inconsequential issues ...
I'm willing to bet the farm that if there's to be a day of judgement, we're gonna be judged on how we interacted with one another 24/7 and not by which particular building we worshipped in on Saturday or Sunday or even whether ... and if the here and now is all there is, it'll be a far more pleasureable here and now to interact well with one another than to not do so ...
Let's have a cigar