Paul was a man. Jesus is God. Paul was chosen by Christ to be a bishop and evangelist of the early Church.
Peter had no problem saying what Paul wrote was hard to understand, maybe that's why some would object to referring to his words as definitive. But are his writings LESS God's word than Luke's or John's or any other writer? I think not.
I will agree with the early Church and disagree with anyone who considers the words generated by a man to be equal or superior to any words generated by God. I think that Jesus' quotes are superior to any words generated by any man.
I don't understand how the Gospels would be moved to the back when they and Paul's writings are equally part of Scripture. How? By quoting Paul? By saying he teaches something different than what is spoken in the Gospels? Or....What? Ought NOT we believe what Paul wrote?
Some years back, I did a study of the proofs of the Westminster Confession of Faith. Their Gospel proofs are practically nonexistent. The primary proofs are mostly Pauline (and from a Catholic view taken out of context) and most of the remaining proofs are OT. There is little or no Christ in Reformed Christianity.
(Please don't try to choose my comrades for me, I agree with whom I agree and disagree with whom I disagree.)
I would ask you to try to understand from a Catholic point of view, that there are so many different "Christians" with different beliefs out there, with varied and shifting alliances that it is difficult to keep track.
“I will agree with the early Church and disagree with anyone who considers the words generated by a man to be equal or superior to any words generated by God. I think that Jesus’ quotes are superior to any words generated by any man.”
Paul's writings, his words were generated by God just as much as David's or Isaiah or Luke's. Paul taught what Christ had shown him so to put “.... any words generated by any man.”, (I'll assume you mean Paul and if not you'll correct me) and the recorded quotes of Jesus in opposition or difference is a error and contrary to Jesus’ words.