Top 10 from NARUTOS generation......

[FemmeFatale]

Sakura is above Lee.
He can't used the 8th gate, and as far as the manga is concerned, Regneration counters the 8th gate, and her chakra isn't running out, before he dies

 

[Nick01]

Replace sakura with hinata, and you've got a more accurate list. She would wreck her.

 

[KesOnFire]

Gaara with 8th Gates? lol

 

[Rufus ShinRa]

1.Naruto
2.Sasuke
3.Gaara
4.Kankuro
5.Temari
6.Sakura
7.Neji
8.Sai
9.Choji
10.Shino
11.Rock Lee
12.Shikamaru