@Tim Xman Can you give a detailed rundown, if you don't mind? X'D < 3 ! !
A Mind-ful Ten Tails' Obito Wins in my opinion..
8G Guy cannot penetrate The Spirit Sword Of Hagoromo, if the former doesn't lose his Will, like he did in canon.. also.. I don't really see how Guy is supposited to penetrate a Ten Tail's Natural Energy Enrichified Chakras amplifying the blade, and it's supplementary variations in the Truth-Seeker Ball Pipes, Shells, Circular Shields, and it's ethereal ability to alter any of it's properties to fit the situation in pertinence..
Supplementally, if he utilizes a Ten Tail's Natural Energy Chakra Enrichified Authority Of The Gods'.. I don't really see the latter tearing past it — given the ethereal, space-time dimension — that he warps to, would be so exceedingly far away..
.. I believe Itachi wins.. tbh.
Between his Exhilaratingly Skillful Explosive Crow Clone Feints, The Spiritual, Etherealite, Magically Enrichified Tools — Hyped by Black Zetsu, who is retroactively stated to Kaguya's Will, NTCM Naruto + Killer Bee's Blitzing Flicker Speeds, Extremely Haxxed HQ Subjugating Illusory Magic Skills (Hyped By The Likes Of Shikaku, and Aō.. ) .. I feel like Itachi's Victory in this Battle Simulation, is definitively pre-ordained in his favor.. tbh.
For all intents and purposes, Sasuke cannot use the Prēta Path. This is intuitively evident from the following examples:-
Sasuke cannot produce the bubble like shape (that Uzumaki Nagato emits when manifesting the technique) which encircles the castor omnidirectionally to protract from all sides.
He cannot eat chakra omnidirectionally like indicative by his features in the serialization.
He didn't know the name of the technique. A thematic aspect in the Naruto Universe is that characters subconsciously recognize the name of thier techniques (like indicated by the fact that Børuto instinctively knew the name of his Lightning Release: Thunderclap Arrow [a nod to his mentor; Sasuke Uchiha's own self created technique — Lightning Release: Kirin — by virtue of the fact that Sasuke states "Begone with the Thunder Clap" when culminating the technique on Itachi Uchiha. 1) Sasuke Uchiha acclimated the 6T Rinnegan from the likes of Hagoromo Ototsuki who blossomed SPSM in Jesus Naruto as well; whom went on to subconsciously perfect his acquiesced techniques like alluded to by the Databook-4 and implicated by Naruto Uzumaki himself. There's virtually no excuse for Sasuke to not know the name of his technique; given the circumstances in which he magically blossomed it. 2) For additional information, he knew instinctively to name the second acquiesced ability in his Eiēn no Mangekyo Sharingan I.E, Blaze Release Kagůtscuchi appropriately — still the fact he didn't know the exact name of his magically manifested abilities' in the 6T Rinnegan — is a tell-tale indicator that he doesn't have it — or alternatively; that it's a technique that's mutually exclusive to Uzumaki Nagato.
Sasuke's chakra eating abilities are extremely primitive, and slothy like indicative at VOTE 2; where he couldn't instantly absorb Naruto's Chakras, while no such limit exists for Uzumaki Nagato — an indicative that he utilizes a different technique.
Sasuke doesn't utilize any of his apparently mastered Six Paths' Of The Rikūdo Abilities' in Baruto; inspite of recieving nearly 18+ years (nearly two decades) of time tò train, and practice.
Sasuke's Rinnegan can be fixed if an extra character is introduced into this serialization whom likely possesses the ability to fix or heal it. Other than that, I don't see a chance. He isn't capable of fixing it with his skill or ocular talent — as he couldn't utilize his ocular abilities' to it's maximum potential (couldn't utilize a single Six Path's Abilities' sans like Chibāku Tēnsei I.E; an Outer Path Technique — which associates with the Seventh Realm/Path, exclusive of the other Six Paths' Abilities intuitively.). Additionally, Uzumaki Nagato — the best, most dexterous manipulator of the Rinnegan Path's Abilities' insofar — couldn't fix his legs, for like a literal eighteen years (nearly 2 decades), inspite of his skillful usage of the eyes.
DSM Kabuto wins.
Madara wins. Adult Sakura is substantially inferior to her WA Iteration, where she's comparable to Byakugaô Tsunade.
Prime Nagato is substantially stronger than Jīgen.
The God Tree likely manifested on Earth via an extra Ototsuki arriving on the planet. Not to mention, chakra is considered a form of magical energy. It's likely that it manifested magically out of thin air, like Hagoromo manifested 9 chakra animals (Bijuū) out of thin air with COAT utilizing the Juūbi's chakras.