Please go back and read the fight again. I have just told you what each of them did. Sasuke said and i quote " I've used too much chakra i cant control my rinnegan properly". This was right after using amateratsu on Naruto. He said he couldnt use it properly not that he couldnt use it at all. Thats why he couldnt pull the bijuu close and absorb their chakra yet he could absorb chakra from Naruto. And lol to the part where you said Sasuke should have absorbed his chakra earlier. Absorbing chakra requires contact and during a fight who would stand there and let their chakra be absorbed.I didn't read? Didn't I just tell you to read 697? Lol.
Sasuke clearly said in that chapter he used to much chakra so much he couldn't control his new technique, The Sharinnegan. Like I also Said Naruto isn't the one who misused his that was Sasuke. Power of 9 Biju pisses it away in one attack and got his ultimate PS form destroyed LOL
Sasuke got rekt in that attack by quick thinking of Naruto lmao.
In the End Naruto's quick thinking > Sasuke
Itachi would be ashamed at how poorly his lil brother uses the power he had because he couldn't even use the Rinnegan techniques he had right instead of using the ability to absorb chakra much earlier he left using it after he got punched into the side of the mountain and Kurama gave chakra to Naruto so Sasuke absorbed that lmao.
Ive already explained in earlier posts who had more chakra and who wasted thiers more. So maybe read the fight again and reconstruct your argument.