Naruto:Only 3 goududamas and a huge portion of chakra gone,also had the intent to not kill but seriously injure...him being weakened due to fighting 1on1 with Kaguya...
Sasuke:New Rinnegan? intent to kill...close to fresh.
Thats pretty much all I could think of to be quite honest but that was balanced out when he took all the chakra from Tailed beasts to make his strongest weapon..
Plus Sasuke had the rock that Naruto fell over when he was dashing towards Sasuke with his Rasengan.."The rock 1-0"
So conclusion
Naruto had the biggest disadvantage.. same as Hashirama not wanting to kill his friend..except Naruto had the intent to seriously injure not kill the entire fight rather than Hashirama deciding to kill Madara..
And the Rock gave Sasuke the upperhand
dat rock
Say what you will..all this is true,odds were tipped in Sasukes favor but still lost...if it was a close draw Sasuke would not have said "I lose" even if he did get talk no jutsu'd as Naruto throughout the fight was focus on saving Sasuke while sasuke wanted to kill him.
On his own reserves..Naruto was using those reserves against Kaguya while Sasuke was being durp in another dimension :;/
Dont forget aswell...Naruto has been fighting a war before all of this way before Sasuke even came to the battlefield...
Sasuke = Sasuke's chakra + Sage's chakra
Naruto = Naruto's chakra + Sage's chakra + Kurama's chakra + small portion of Bijuus chakra
It's unfair to begin with. Naruto clearly has the advantage here and will obviously last longer in a continuous battle since his chakra reserves are much greater compared to Sasuke to begin with. So your biased opinion about Sasuke having an advantage is complete crap. I'll explain it more.
If Sasuke joined the war alongside Naruto, it would be a massive
disadvantage on Sasuke's side since Naruto has MUCH greater initial chakra. Sasuke joining the war late balanced this out. Naruto's surplus supplies of Kurama's chakra negated Sasuke's benefit of joining late so both are on equal footing. Sasuke gains no benefit of joining late.
And then Naruto's Yang Kurama got replaced (which spent most of the chakra), so even after Sasuke eventually balanced his chakra disadvantage by joining late, Naruto took it back to his side and got the advantage after Kurama got replaced because Yin Kurama was almost full on chakra, and Yang Kurama who spent most of the chakra was gone. So now Naruto has the upper hand.
Sasuke spend HIS chakra for the most part whereas Naruto used Kurama's chakra for the most part with moderate to little use of his own chakra. Sasuke's chakra increased in proportionate amount to Naruto's default chakra so that's balanced, and Kurama's surplus chakra was compensated by joining late so that WAS also balanced, but then Naruto got the massive chakra boost by Kurama getting replaced giving Naruto the advantage. And because of that Sasuke's chakra ceased much earlier. He needed the bijuus chakra to compensate for his lacking Six Paths chakra.
Sasuke being close to fresh is the biggest bullshit I've heard in a while. Both of them were equally as exhausted. Both were restored to full stamina after meeting the Sage. So the previous account of tiredness is automatically negated. After that whatever happened, happened to both Naruto AND Sasuke. So no exhaustion excuse available. Amd Naruto also rested a lot of times before Sasuke arrived. In fact, he was resting and getting healed when Sasuke arrived. Sasuke evidently even lost control of his powers due to weakness and exhaustion whereas Naruto showed no such symptoms. So Sasuke was evidently the one having the disadvantage.
And Naruto's surplus supplies of immeasurable Kurama's chakra hardly match up to the lame excuse of Sasuke's non fighting time in Kaguya's dimension, in which Naruto hardly used any mass scale ninjutsu even after having the massive advantage of having so much more chakra than Sasuke, plus Sasuke wasn't resting, he was trying ways to get out.
Giving Naruto the edge just because he said that he didn't want to kill Sasuke is the most ignorant crap ever. AS IF he could kill Sasuke whenever he desired LOL. And just because Naruto has no intention of killing Sasuke from nowhere means that he was holding back. He was using his full power and exactly proportionate to the power Sasuke was using. Naruto's best chance to draw with Sasuke was to use his full power. He used all his most powerful attacks to counter Sasuke. Killing intention or not is irrelevant because he was using his full power.
Sasuke said that Naruto wasn't serious only because Naruto wasn't using his full power AT THAT TIME. And Sasuke was ALSO not using his full power. Just because Naruto didn't say something similar about Sasuke (like Sasuke said about Naruto) doesn't mean Sasuke was utilizing his full power.
He was tempting Naruto to use his full power by saying attacks like that won't work while also restraining himself from using his full power. Sasuke was also not using his full power (clearly evident) and was waiting for Naruto to use his full power before he himself used his full power. But Naruto didn't listen to Sasuke that way because he knew that using their full power would be destructive and fatal for both which he wanted to avoid. So Sasuke forced Naruto into using his full power by going into full power himself (by collecting Bijuus chakra within Susanoo). So Naruto had no option but to use his full power. And after that Naruto activated his full power and Sasuke said that he got serious. But the fact remains that
he fought Sasuke with his full power. so killing intention or not is irrelevant.