Please read what you just wrote. You contradict yourself like crazy.
Do I? Or is it just your perception?
1. The sage restored Sasuke and Naruto to 100% Stamina and Chakra
So...Naruto and Sasuke were on equal footing then when the fight started.
Yes, the Sage restored them to 100% and they were on equal footing when the fight started.
2. Sasuke used a tremendous amount of chakra to take control of the bijuu using a combination of genjutsu and chibaku tensai
So...Sasuke used a tremendous amount of chakra to gain access to an even larger amount of chakra (which he utilized in the fight, by the way)
I did mention that point... I did say that the amount of chakra he utilized in taming the tailed beasts compensates for what he used in Indra's arrow, so the net advantage is zero... I don't know if you're blind or too damn ignorant.
3. Sasuke wasn't fighting to win or lose, just incapacitate Naruto to gain (take?) a break.
BAHAHAHAHA!!! He clearly said (on multiple occasions throughout the 5 chapters) that he was fighting to kill Naruto. If that isn't fighting to win, I don't know what is. If anything, Naruto wasn't fighting to win in the beginning (which Sasuke even acknowledged)
Yes, he said he had an intention to kill Naruto, but he wanted a break so that he could restore his chakra and stamina to a point where he could fight Naruto properly and then kill him, because he knew that it wasn't possible in the condition he was in. Is it so damn hard understand?
And you say that he said on multiple occasions that he wanted to kill Naruto? What about the infinite number of occasions that he asked Naruto for a break? Manifest double standards of comparison...
In conclusion, you further proved that Naruto has better stamina and chakra reserves than Sasuke.
Yes, he has... Naruto has better stamina and chakra reserves compared to Sasuke. Meanwhile, Sasuke compensates for that by having a wider range of of more powerful jutsus, compared to Naruto. So Sasuke is higher on power while Naruto is higher on chakra and stamina. There is a certain time in a battle where chakra and stamina hold a drastic importance, and there is also a certain point, where jutsus and power level make all the difference. Apparently, the point at which they both stood acted in Naruto's favor because chakra and stamina were the inequality factor at that particular interval.
If Sasuke's total amount of chakra is 90% of what Naruto has, and that's all he needs to defeat Naruto, then
Naruto = 100%
Sasuke = 90% (relative to Naruto)
If the fight took place in this extent with both of them at the fullest, chakra and stamina weren't a huge subject of concern. So Sasuke would have won as he would have utilized all he had and could fight in his natural style due to not being affected by the inadequacy of his chakra and stamina.
Now considering, they both utilize almost the same power to fight a war together and then battle each other until they come to this point
Naruto = 7%
Sasuke = 2% (relative to Naruto)
Note: This isn't the exact correspondence of their situation, it only gives an idea regarding it.
Sasuke needs chakra and stamina to utilize his mightier jutsus, but at this point he can't, because his chakra and stamina are at 2% and do not allow him to use what it takes to defeat Naruto i.e his higher magnitude of power and they also negatively affect his overall performance. Naruto's chakra on the other hand is significantly low, but not to point where his normal fighting style is altered and the effectiveness of his jutsus is decreased.
Close to the end of the fight, chakra and stamina are of highest concern (which Naruto has better), because their longevity shapes the conclusion of the fight. At the initial point of the fight, powerful jutsus are more important (which Sasuke has better) because any amount of chakra and stamina will work (as long as you have a sufficient quantity which Sasuke has) if you have the most OP jutsus, because at that point, the power you have and stronger attacks are all that matter. Apparently, Naruto had the benefit of the circumstances.
Had the fight started with both of them having full chakra and stamina, Sasuke would have easily won (well theoretically), because in the starting of the fight, chakra and stamina don't matter, its only the power and jutsus that determine the vantage.
To use your own analogy, if we both stay up all night studying and, in the end, you use a cheat sheet to supplement your studying during the test and I still score better than you, I either a) studied harder than you or b) am smarter than you. Both of those prove my point.
None of those prove your point at all...
I didn't use a cheat sheet, all fair relying solely on my own abilities. My intellect and preparation are better than you. But studying all night was out of my capacity and I faced a head pain due to which I could not think during the papers and utilize the full potential of my brain which in turn lowered my score. Meanwhile, you had a better stamina and studied all night, yet still had the capacity to think well in the papers. Although your intellect and preparation are lower than mine, you score better relative to me, due to the drawback I faced. Had I been completely fresh, healthy and active during the papers, I could have easily scored better than you.
So, my point still pertains.
Also, your cell phone example makes no sense since they were both fighting non-stop since you say they were restored to 100% stamina and chakra. If you have 2 cell phones at 100% and you're using both of them continuously throughout the day, at the end of the day, they're both gonna be low on battery. If one is at 10% and the other is at 15% after a full days usage, it means that one has a bigger battery or is more efficient than the other (AKA Better stamina)
It makes complete sense. All you need to do to understand is to enhance your grasping and thinking ability...
First of all, it never happens in all reality, that the usage of both phones is exactly the same. It doesn't even happen by coincidence. But for the sake of argument, lets consider theoretically that their usage was exactly the same.
And nobody denied that Naruto has better stamina. He has better chakra and stamina and that's completely fair to have and use.
Naruto has a better battery life (chakra and stamina) while Sasuke has the more powerful processor (jutsus). Now since a smartphone will give identical performance whether its battery is full or low, we can't relate it to Naruto and Sasuke's case (in this particular event, my previous analogy still prevails). But hypothetically speaking, let's consider that the smartphone's performance decreases with battery life as it happened in the actual case. Both Naruto smartphone and Sasuke smartphone are low on battery, Sasuke smartphone is relatively lower about to end anytime. Naruto smartphone doesn't have a processor as good as Sasuke smartphone. So it provides an exceptional benchmark score but still not as good as Sasuke smartphone could do. Sasuke smartphone, on the other hand, does worse than Naruto smartphone despite having the better processor, due to its lower battery life affecting its performance.
As I said before, the above example is only a supposition to better understand the difference. Smartphones don't behave like that in reality.
And actually, my weightlifter analogy makes perfect sense if you think about it. Both characters essentially expended the same amount of chakra. Saying that Sasuke was tired and low on chakra isn't an excuse at this point. Both characters were on the same level so if one does better than the other, that means his 5% is more than the others 5%.
The point is that Sasuke did not have 5%, he had something like 2%. So definitely, 5% is better than 2%. They both used the same amount of chakra but Sasuke already had a lesser amount of chakra, so how come both ended up at 5%? Sasuke's 5% is better than Naruto's 5%. But Naruto's 5% is definitely better than Sasuke's 2%.
Your weightlifter analogy is still a failure.
Edit: Option C for the studying analogy: I'm a better cheater.
Could be... If Sasuke did any, I would consider this option.
Edit 2: In case you can't understand my whole weightlifter analogy after my explanation, think of it this way: If Naruto's power is 100 and Sasuke's power is 95, 5% of Narutos power is greater than 5% of Sasukes power. So, if both are at 5%, Naruto has a little more gas in the tank.
Yes, he obviously does.
But keep in mind the fact Naruto was not going full power cause he did not want to kill sasuke, only finally getting serious half way through the fight.
Just because he didn't want to kill Sasuke from nowhere implies that he was holding back. He was battling Sasuke with full power because he knew it was his best chance of taking him down without killing him.
Anyways, by the time the fight started for real, Naruto was serious already.