Naruto vs Sasuke (both fights)= awesome
Rock Lee vs Gaara= amazing
Orochimaru vs Sarutobi= damn!
Naruto vs Haku= pretty cool
The rest so far, meh! Some good, some bad, nothing amazing. Itachi's first appearance was well done. The Sannin fight had it's moments. Even some of the fillers had decent animation. As far as QUALITY goes, I blame Studio Pierrot, not Kishimoto.