durant imo is a little too modest...he should feel like he the best in the league not all time but at least on lebron level
you don't ave to feel like you're the best to be the best. The thing with the GOAT's is that they are always pushing themselves to be better then something. Whether that is the best player in the league, or if they are trying to be better then themselves (if they're already the best). Being the best isn't about saying you're the best. That's for us to debate Being the best is about showing and proving. Your actions speak louder then words.
I respect Durant for always being on the humble. he knows he's good but he knows he still has a ways to go. And even as good as we all know he is. He is also intelligent enough to know they build you up to break you down!