43e0429e_testantism___Roman_Catholicism__Protestant
[Topic] Pope - Authority of [Orthodox] As the Bishop of Rome, he has a primacy of honour when Orthodox, not of jurisdiction. At present, his primacy is not effective as the papacy needs to be reformed in accordance with Orthodoxy. His authority is thus no greater or lesser than any of his fellow Bishops in the church. [Roman Catholic] The Pope is the 'Vicar of Christ' i.e. the visible head of the church on earth and spiritual successor of St. Peter. He has supreme authority (including that over church councils) within Christendom (The Power of the keys). [Protestant] 
The Pope is the leader of the Catholic church, having no authority to speak for the church as a whole.
Comparison between Orthodoxy, Protestantism & Roman Catholicism
Protestant