Naruto vs Pain
Jiraiya vs Pain
Minato vs Tobi & Kyuubi
Naruto, B & Itachi vs Nagato
Sarutobi vs Orochimaru
Kakashi & Team 10 vs Hidan & Kakuzu
Naruto vs Gaara
Naruto vs Sasuke at VotE
Pain vs Konoha
Asuma, Shikamaru, Kotetsu and Izumo vs Hidan & Kakuzu
Nagato vs Hanzō
Naruto vs Neji
Sakura & Chiyo vs Sasori
Sasuke vs Itachi
Sasuke vs Deidara
Shikamaru vs Tayuya
Shikamaru vs Temari
Rock Lee vs Gaara
Rock Lee vs Kimimaro
Naruto vs Sasuke in part 1, a really powerful and emotional fight.
Two kids fighting for what they believe in, Naruto in bringing Sasuke back, Sasuke in breaking all the bonds with Naruto and Konoha.
The end also was pretty good, Naruto redirecting the strike to graze Sasuke's headband, Sasuke that can't kill Naruto, and sever that final bond.
The whole comparison between Madara - Hashirama and Sasuke - Naruto, at the beginning and at the end, was pretty sweet too
Pein vs. Konoha...it was soo badass.
Jiraiya v/s Pein
I support Naruto vs Pain, easily the best fight imo.
Konoha vs Pein. Those 20 or so chapters were just epic.
There are a lot of good fights in Naruto, but I nominate Naruto vs Pain for Best Fight.
It was such an epic battle and Naruto showed not only strength, but also smart battle tactics and Pain was godly awesome too.(pun intended)
I nominate Minato vs Tobi/Kyuubi ... gosh his inteligence and fighting style is so unique, yet simple, all about speed not flashy as some but probably the most efficient
So many fights....
I wouldn't know which one to choose.
But, I guess there's one that is a bit more special to me.
The fight that really got me hooked for good to this manga was Naruto vs Gaara.
It was just so freaking awesome.
Kakuzu & Hidan vs. Kakashi & Team Asuma. That one was really incredible: a lot of strong jutsu, tactics and surprises on both sides.
Shikamaru vs Temari
He was my favorite character before I knew why. The why was this fight.
Naruto's battles don't usually live up to my hype. Most of them are rather mediocre, simple or just not good enough. But I really, really enjoyed the fight of of Asuma, Shikamaru, Kotetsu and Izumo vs. Hidan and Kakuzu. Followed by Kakashi and Team 10 vs. Hidan and Kakuzu.
Naruto vs Sasuke the fight in the Valley of End
Pain vs Jiraya, I know this won't pass but I'm a sucker for main characters death and Jiraya's was amazing
Sasuke vs. Itachi, no contest. A fight with two Sharingan users? Are you KIDDING me?
Sasuke vs. Itachi, Sasuke vs. Deidara, Naruto vs. Pain, Naruto vs. Gaara...these fights are all good, but I'm going to go with Rock Lee vs. Gaara. Hard work vs. genius. And it didn't end the way those sorts of fights typically end. That was the fight that hooked me...especially after some of the lame Chuunin exam fights.