People claim he or she had help blah blah blah.
Let me tell you what really matters QUALITY.
Who has cooler fights?
Who's opponents are stronger?
Getting help or not doesn't matter on this list.
Naruto has battled:
Pain a user of the Rinnegan (widly considered the best fight in the series)
5 Tailed Beasts at once
Kurama in order to gain control
Kakazu a guy who fought the First Hokage
The Third Raikage (said to be the strongest Raikage)
Fought Gaara when in early transformed state and later in Shukaku mode (as a kid)
Fought through an entire army of Zetsus
Edo Itachi and Edo Nagato
Tried to fight Madara Uchiha
Is currently battling the 10 tails in the biggest and longest fight in the series
Naruto as a kid (with one tail) and later in Shippuden in base Mode
Deidara (a low Kage level ninja)
Itachi his older brother
Killer Bee a perfect Jinchuriki
The Five Kage's
Danzo (a candidate Hokage)
Kabuto in DSM
Gaara in base and later early stages of transformation
This is just my opinion but Naruto seems to have the most epic fights in the series against the strongest opponents out their.
Sasuke has some cool fights, but when it comes to epicness Naruto currently holds the title.
So how does getting help matter?