Best anime fights

[Shougo]

Rurouni kenshin
Kenshin vs aoshi(both fights)
Kenshin vs jinei udou(sp?)
Kenshin vs soujiro seta
Kenshin vs Hiko
Kenshin vs saito hajime
Kenshin vs Shishio
Sano vs anji
Saito vs usui
Kenshin vs shougo amakusa
In short almost all of the important fights.
Shinchin samurai
Kambei vs Kyuzo
Also the gun and sword fight in which kyuzo is killed
Inu yasha
Sesshomaru vs Inu yasha(all of them)
Sesshomaru vs naraku
Get backers
Ban vs Akabane
Ginji vs Akabane(they are usually funny except the one in the tower in may city where he almost converts into ratei)
Kazuki vs jubei kakei
Kagami vs himiko
Shido vs hiruke(sp?)
*stagger* I guess its a little(a lot) long.

[caji429]

Naruto fights and dragon ball Z

[xekon]

Gohan vs Cell was awesome.

I also really liked Goku vs Vegeta back when Goku came back from the dead the first time.

[Vino]

The fight between

Sasuke and Itachi
Sasuke and Deidara
Kakashi and Kakuzu
Kakashi and Pain
Naruto and Pain

Ichigo and Aizen

Emiya Shirou and Archer
Saber and Berserker

Edward Elric and Greed

Avatar Aang and Ozai

Inuyasha and Bankotsu
Inuyasha and Sesshomaru

Kenshin and Shishio

[Heavenly Otaku]

Why has anyone mentioned the fights from Yu Yu Hakusho.

For me its, Demonic Yusuke(Raizen) vs  Sensui. It lasted less than 20 seconds when Raizen took over and arbitrarily terminated Sensui.  MAN....he was intensely formidable and Brutal warrior. 

[kany]

well all dragon ball's fights
and also naruto vs orochimaru from shippuden