What I find bizarre about the allegory argument is that one almost couldn't write a worse piece of allegory.
Genesis conflicts with Romans and Acts, one WOMAN, not one man.
Genesis 1 and 2 conflict with each other in order of creation of things.
And it's just not important.
There are more and less important parts of the New Testament. The RATHER more important parts are what Jesus said, considering he was the Son of God. Interpret the rest of the Bible around that, and discard the parts that conflict with Jesus as mere human traditions in error - just like Jesus did with Old Testament divorce - and the Bible is a wonderful guide. Read it without a Rosetta Stone of authority, though, and its a welter of contradictions and even anachronisms and error. How many people's faith has been stunted or killed aborning because the first thing spiritual they ever tried to read was Genesis 1, and tossed the thing away as preposterous when the got to the business about the rib.