Enlighten me. What was naruto's strongest attack? Also just like when sasuke acquired mangekyou, he had to fight using his ocular power to bring out it's full potential. That's why sasuke wasn't that influential in the kaguya fight. As he said he had to get used to his eyes to use them at full power, which was what he was doing against madara and kaguya.
Also your example about bijuui is off. Naruto had half the kyuubi's chakra yet his bijuudama matched several other bijuu's bijuudama so obtaining bijuu isn't everything. Befriending the bijuu gives you immense power.
Cry more.
As I stated above, naruto didn't claim any technique of his as strongest yet unlike sasuke who claimed Indra arrow as his strongest technique.
My point was that naruto showed more OP techniques than these mere 2 FRS.
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These above techniques of naruto are above his 2 FRS. Naruto didn't claim these above techniques as his strongest yet means he has still big feat up to his sleeve.
Secondly, sasuke had the all bijuus chakra and still.failed.
FYI juubi eyes= rinnegan/sharing an
Juubi body = 9 bijuus
Naruto has juubi body power
Sasuke has juubi eye power
But naruto didn't use other bijuus chakra against sasuke.
Whilst sasuke needed juubi body powers too in order to match with narutos powers.
So you can clearly judge who is stronger among them.
You sasuke fapboys have the habit of not accepting manga facts. You just don't have the guts to accept it.