Which church has God's priesthood authority?

to those having spasms over the authenticity of the quote, here is the background
http://www.fairwiki.org/Mormonism_and_Christianity/Strength_of_the_Mormon_position_quotation_and_source

PS
Did you know that parts of the early catholic and coptic churches once performed baptism for the dead?

Evidence of similar practice occurring is found from the fourth canon of the Synod of Hippo,3 held in 393. "The Eucharist shall not be given to dead bodies, nor baptism conferred upon them."

In the coptic christian church evidence is seen here:
"In this country--I mean Asia--and even in Galatia, their school flourished eminently and a traditional fact concerning them has reached us, that when any of them had died without baptism, they used to baptize others in their name, lest in the resurrection they should suffer punishment as unbaptized." (Heresies 8:7)

That is interesting.  

It doesnt SAY one is right or the other, its just describes how, "It is either the perpetuation of the Gospel from ancient times, or the restoration of the Gospel in latter days."

I believe the Bible when it speaks of a "Falling away", and the fact that all Jesus' apostled were gruesomely murdered from the face of the planet did begin that process.  His gospel was utterly rejected.  He did restore it, authority and all, through the Prophet called in latter-days, Joseph Smith.

-----------------------------
To Shorty:

Im amused at how ironic your position is.  Filled with "you cant"s and "you couldnt possibly"s....   Then because YOU cant figure it out you claim we are self-important.  Let me explain how it has been figured out, BY GOD.

re:
"Do you really think God is such a bureaucrat that he would deny blessings to certain of his children because they don't happen to know someone with 'authority'?"
---- I believe God is just and cant twist his own laws.  If he says baptism is the way, baptism is THE WAY.   Is he going to deny his children that didnt "happen to know" someone with the authority?  Of course not!!  Hence his doctrine of baptisms for the dead!  They can then CHOOSE to accept the work or not.  No one has been denied, and everyone gets their chance.  AND.....He remains just.

"Billions of people have lived on this earth without leaving a name behind for Mormons to baptize by proxy."
-----The work will be done during the Mellennuim as well. What did you expect those thousand years ruled and reigned by Jesus Christ were going to be filled with?  Running through meadows in slow-mo?

" There are only a couple million Mormons who actually do baptisms for the dead and they could never do all of them even if they knew the actual names."
------ Thats not remotely true.  It would just take a long time.  Especially if you consider how many "members" there will be during the millennium to be dedicated to the work at hand.  It doesnt take THAT long to repeat a baptism prayer and be submerged in water.  One minute total??  Ordinance complete.

"God really doesn't take your ordinances as seriously as you do."
---- Really?  You dont even believe in God, do you.  How can you speak for him?  As is commonly understood of God, He is just.  He cannot abide sin in the least degree.  What is this life at all if not a showing of our conversion (or not) to him.   How can you claim to follow him, and not do as he asks?
Lets see what he said about it:
1 Cor 11:
2-Now I praise you, brethren, that ye remember me in all things, ***and keep the ordinances, as I delivered them to you.***

AND..
Luke 1:
6- And they were both righteous before God, walking in all the commandments **and ordinances** of the Lord blameless.

(seems like God does indeed care about ordinances.)

 "Your self importance is astounding."
----Again, I find that comment hugely ironic.  You state your position with condescension, and then tell us how we cant possibly accomplish something that is totally accomplish-able.  And then you tell me God doesnt care anyway.  YOUR self-important attitude is.....well, to be expected.  Your hobby is following the posts of the church you abandoned around just to slander it in an attempt to feel more in control of your path.  You know you are acting apostate from Gods will, you just need to keep rejustifying it.  Its so sad when I see how ex-members cant just let it go.  But they really cant.