Civil War if Boromir survived?

[Zebedee]

I do not think Faramir would have taken the ring had he been in Rivendale. In Ithalian, he had the chance to take it, he could have gotten his father's respect, but he turned it down. I think that he would be able to resist, at least longer than his brother did.

[Tuor of Gondolin]

Interesting speculation of whether Faramir would have resisted longer then
Boromir. On the one hand, one reason daddy didn't take to Faramir was that
he was "a wizard's pupil." He was more of a scholar and generally a reluctant
warrior (to some extent perhaps JRRT patterned him after himself?), while
Boromir was more instinctive and concerned with the practical. But then again,
Gandalf, Galadriel, Elrond , and Aragorn were all afraid to take the ring
(Gandalf, it would seem, even for a brief time) so perhaps an
intellectualizing approach would be an ineffective curb on the ring's power to
corrupt. Then again, Aragorn and Gandalf were obviously in close proximity to
the ring all the way down to Moria and beyond without being overtly tempted.

Might Boromir have had a different ring view if he had known of Isildur's
repentence of taking the ring at The Gladden Fields?

Hmm. I guess I haven't a definitive view on B vs. F ring resistance.