Ah, Pascal's wager... The problem I've always had with this is that, at least in some scenerios, choosing the wrong religion gets you sent to Hell. Simply 'feeling good' is no compensation if your religion is not only false, but damnable.
According to the internet (which is never wrong), there are 33,000 sects of Christianity in the present. Granted, most of them are not exclusivist when it comes to salvation, so I'll be really generous here and cut that number down to one percent, or 330. This leaves us with the following premises:
1) There are 330 varieties of Christianity out there, all claiming to be the one true church.
2) No more than one of them can be correct in this claim; but all of them could very easily be wrong.
3) If you decide to play and join one of these competing sects, you have, roughly, a 99.7% of being damned anyways and probably being tortured in Hell forever to boot; and that is assuming that at least ONE of them is the true Christian church (tm). If Islam turns out to be the One True Religion (tm) then you can up your chances of eternal hellfire to 100% certainty.
Taking the preceeding into account I offer you my own wager:
1) Either the Bible/Qur'an/Book of Mormon is or is not the word of God
2) If it isn't the word of God, you can enjoy yourself all you want in this life without facing any consequences in the next one.
3) If, however, one of these books IS the word of God, it is almost certain that you will be damned for all eternity no matter how you live or what you believe; therefore...
4) You may as well live your life as if all these holy books are poppycock and enjoy yourself.