There are huge discrepancies between different texts, additions, and delitions, differences in length, content, meaning, you name it. I submit that the reason we have so many different "churches" is because of the corruption and divergence the Scriptures have been subjected to.
When Barnabas and Paul split up, the Gospel spread twice as far in the same amount of time. And when I notice there are five Baptist churches in this very small rural community, I rejoice - because each of them has a ministry different from the next. One attracts elderly people, another couples, another small children, another charismatics, another families.
So while you may be troubling over these differences, I shall be rejoicing and praying "Thy name be hallowed, Thy will be done, Thy kingdom come" - my "no strings attached" prayer.
I think the reason there's so many different churches is that Satan has succeeded in stealing a bunch of folks away from the faith, to fight amongst one another, and to (contrary to what St Paul taught) deliberatly proselytize against the true church.