I’ll answer what I know and leave the rest to others while I do some research.
3: When Saint John Chrysostom was reinstated; was it mainly Rome’s doing?
St John Chrysostom wrote appeals to three Western Bishops: Innocent I Bishop of Rome, Venerius Bishop of Milan and Chromatius Bishop of Aquileia.
William Stephans, Church historian, writes in his book
Saint Chrysostom: His life and times:
“The Patriarch of the Eastern Rome appeals to the great bishops of the West, as the champions of an ecclesiastical discipline which he confesses himself unable to enforce, or to see any prospect of establishing. No jealousy is entertained of the Patriarch of the Old Rome by the Patriarch of the New Rome. The interference of Innocent is courted, a certain primacy is accorded him,
but at the same time he is not addressed as a supreme arbitrator; assistance and sympathy are solicited from him as from an elder brother,
and two other prelates of Italy are joint recipients with him of the appeal.”
(pg. 349-50)
St John Chrysostom dies in exile, so the appeal to Rome,
as well as the other two Bishops, were of no avail.
4: Fr Erickson stated that honor isn’t merely social benefit without actual power in that honor. To me, that implies there was actual juridical authority that went with place of honor and precedence.
Sounds no different then the Ravenna and Chieti documents.
5: In my understanding of the Pope as head of the college of bishops; is that the Pope is still the bishop of Rome but also it’s head due to authority derived from being the Successor of Saint Peter. Thus, the Holy Father is first among the bishops.
And the Orthodox do not disagree with this. Again, the issue is supreme and immediate jurisdiction over the whole Church.
ZP