it looks like poster above gave some good info.
here is what i found when i was searching on this stuff. if anyone else wants to chime in while i sort through this and reconcile it with above posters, by all means feel free.
still lookin into more, will post more if i find it.
Why Did Christians in Rome Respond to the Corinthians?
When he was fairly old, John reportedly was taken to Rome from Ephesus, then suddenly exiled to Patmos, by Emperor Domitian, and, “after the tyrant's death, he returned from the isle of Patmos to Ephesus” (Eusebius. Church History. Book III, Chapter 23.). It has been reported that this happened because the Emperor's efforts to kill John in oil did not work. Here is one account of the oil incident:
But since for the gospel he is continually prepared for death, he testified about himself to die daily under this meaning. It is also read that the blessed John had been plunged in a vat of boiling oil in the name of Christ. (Polycarp, Fragments from Victor of Capua (2006). Text and translation. Translated by Stephen C. Carlson. [ccel.org/...nts_01_text.htm](http://www.ccel.org/...nts_01_text.htm) viewed 06/04/11)
Rome...Where Paul wins his crown in a death like John's where the Apostle John was first plunged, unhurt, into boiling oil, and thence remitted to his island-exile! (Tertullian. Prescription Against Heretics, Chapter 36. Translated by Peter Holmes. From Ante-Nicene Fathers, Vol. 3. Edited by Alexander Roberts, James Donaldson, and A. Cleveland Coxe. (Buffalo, NY: Christian Literature Publishing Co., 1885.)
Whether or not John actually was plunged into oil, about this time, a schism occurred in Corinth and someone apparently decided to contact the Christians in Rome for assistance (possibly because John may have been in Rome then). The response that came was delayed “**ecause of the sudden and repeated misfortunes and reverses which have happened to us” (The Letter of the Romans to the Corinthians commonly known as First Clement. Verse 1. Holmes MW, ed. As translated in The Apostolic Fathers Greek Texts and English Translations. Baker Books, Grand Rapids, 3rd printing 2004, pp. 28-29 ) (perhaps including John’s exile). If this letter was sent to Rome because John and others were there, it simply shows that some in Corinth were trying to contact the leadership of the Church. Also, it seems logical that those in the Church at Rome may have decided that since John was being exiled, they should simply respond with their opinion.
Although many Catholics suggest the response sent (which they call 1 Clement) is definitive proof that the Bishop of Rome was the ruling Church, the letter actually refers to its contents only as “our advice” (Ibid, Verse 58..2, pp. 94-95) , does not list any author, and does not otherwise prove anything about Roman authority (other Catholic scholars realize that since Clement is not listed as the author that this was not definitive proof of the authority of any Roman bishop, see What Do Roman Catholic Scholars Actually Teach About Early Church History?).
Perhaps, it should be noted that Ignatius, while in Smyrna, sent a letter “via the Ephesians” to the Church in Rome (Ignatius. Letter to the Romans. Verse 10. In Holmes. pp. 176-177) as well as other letters to several other churches; so based on Corinthian letter logic, Catholics should have more reason to accept Asia Minor as the ruling Church instead of Rome. But even more so, because Ignatius specifically acknowledged that the Church in Ephesus had been predestined for greatness by God, as he wrote, “to the church at Ephesus in Asia, blessed with greatness through the fullness of God the Father, predestinated before the ages for lasting and unchangeable glory forever” (Ignatius. Letter to the Ephesians. Verse 0. In Holmes. pp. 136-137).
Furthermore, according to Catholic sources, there were no bishops in Rome prior to the second century (and Peter died in the first century):
"We must conclude that the New Testament provides no basis for the notion that before the apostles died, they ordained one man for each of the churches they founded..."Was there a Bishop of Rome in the First Century?"...the available evidence indicates that the church in Rome was led by a college of presbyters, rather than by a single bishop, for at least several decades of the second century" (Sullivan F.A. From Apostles to Bishops: the development of the episcopacy in the early church. Newman Press, Mahwah (NJ), 2001, p. 80,221-222).
not sure how to interpret this:
Ephesus was biblically important. John lived in Ephesus and despite him being apparently the last of the original apostles to die, not all accepted his leadership and form of church governance. Here is something he apparently wrote from Ephesus:
9 I wrote to the church, but Diotrephes, who loves to have the preeminence among them, does not receive us. 10 Therefore, if I come, I will call to mind his deeds which he does, prating against us with malicious words. And not content with that, he himself does not receive the brethren, and forbids those who wish to, putting them out of the church. 11 Beloved, do not imitate what is evil, but what is good. He who does good is of God, but he who does evil has not seen God (3 John 9-11)**