There is a single assumption that must be accepted before any critical analysis of this topic can be initiated - God, if it exists, must be rational (logically consistent). In the absence of this assumptions, all discussion is moot, since man is incapable of discernment in a universe where anything goes.

If God is rational, than a literal interpretation of any major religion is rendered invalid. This would lead us to conclude that these religions are utterly useless (perhaps mere attempts to control the masses), that they provide some measure of wisdom via a metaphorical interpretation, or some combination of these two possibilities.

I personally believe that this latter, balanced view is most likely closest to the truth; as I have personally derived much benefit from religious scripture from a metaphorical/mythological standpoint, but clearly see the hand of man in some of the dogmatic traditions.

Whether man is rooted in an eternal consciousness which survives death, or he merely slips into oblivion upon his demise, the prescribed approach to life remains the same. He is bound by the consequence of moral law, and it behooves him to behave as inspired by Love in the grandest sense, or at the very least, by the principle of non-aggression/self-defense (respecting and honoring the consent and innate freedom of his brethren and himself).