It was a pretty interesting post. There are somethings I would change however.
Sarutobi should have had a S for intelligence. He is the "Profesor" after all.
Gai should have a S in taijutsu. He is Konoha premiere taijutsu user, that can open all 8 gates and become momentarily stronger then a Kage.
Seems as if, both Saskue and Naruto's intelligence were down played. Saskue's performance versus Diedara his strategy was almost flawless. Not saying he deserves a S or an A for that matter, but he/they are certainly above C.
Naruto's strength and speed, I would've bumped up a little. Hell, with the Rikuduo cloak he is the fastest/strongest character in the manga. Also, Naruto could've been uped a little in Ninjutsu. He knows atleast 2 S-Class techniques Kage-no-bunshin and Rasengan. He even took Rasengan, which was already S-Class, to several forms beyond the regular version.
Kimimaro's stamina is too high considering that he had the aids.
I doubt Kurenai's genjutsu is better than Saskue's.
These are a few changes that I would make to an otherwise well put together chart.
EDIT: Sorry POW I just reread your intial post and realized this isnt your opinion, but rather you just switched the databook interpretation. Good job! I still think my changes would be appropriate considering.