in naruto part 1
- Naruto vs Sasuke It had it all with great fighting action, so much emotion and it was the first time we saw those two fight at there true power and also how the fox took its shape and we all questioned what was this about, and Sasuke winning but allowing Naruto to live was epic to see, how his sharingan adapted and gained more power ...in short this battle was the one that started it all.
In naruto part 2
-Pain vs Naruto that was also on par with the first fight with Naruto and sasuke, Hinata confessing her love,Naruto going badass with SM and then literally destroying everything when he turned kyuubi mode and see those awesome jutsus Pain/Nagato had this is definitly the best one in part 2.