WooingTheStars
I get what your saying about experience, but still hold true that someone with less experience can beat someone with more. We see that type of stuff happening all the time in Naruto and Shounen In general. About the ranking, I feel that people have ether forgotten or dont know that both wave arc kakashi and Zabuza are low kage level. Hiruzen as an old man is stronger than all the other kage, not hokage but all the other villagers kage. Orochimaru had a somewhat equal fight agianst Hiruzen and Jiraiya is equal to Orochimaru, Jiraiya than goes sage mode and dies to Pain, Pain is probably above kage level. I get most of my info from YT videos I can link them to you if You want. you can then decide if you agree or not.
I've done a lot of investigation on this topics and I came to the realizationg that, Pain as Nagato's Six Paths of Pain is indeed above Kage level. Since Naruto got a good hand on him I'd infer that Naruto by that point was around low kage / mid kage level. Which leads me to think that a Jinchuriki with Sage Mode who is low kage level without any of those included should be able to take on Pain.