Naruto been Surpassed J-man. Now being compared to the first
Sasuke been Surpassed Oro*a lil debatable*. Now being compared to Madara
Sakura HASN'T STILL surpassed Tsunade in anything. Still being compared to Tsunade.
See the problem???
No.
Naruto - has surpassed Jiraiya in Senjutsu, true. But in
all aspects of the shinobi arts? Hardly. He hasn't surpassed Jiraiya in fuinjutsu for example, nor in general Sage Arts, ninjutsu etc.
Jiraiya is one of the highest ranked in the databooks, and for good reason.
Should note the only reason Pain defeated Jiraiya is because they knew his secret due to being his students - Jiraiya was
that powerful
without a tailed-beast sealed in his gut.
Sasuke - defeated Orochimaru whilst he was incredibly weak and had lost the spirit/soul aspect of his arms, thereby weakening his strongest aspect/trait as a shinobi.
He surpasses Orochimaru in some aspects, of course - but not all.
Sakura - the
real problem here is that she has yet to strike out on her own. She emulates Tsunade, from her healing justu, to her taijtsu/strength as well as her temper.
Unlike Naruto and Sasuke, has little/nothing to define her as anything but the 'Second Tsunade'. No Sharingan, no blood limit, no massive chakra reserves, no tailed-beast.
She has no 'edge' to beat Tsunade, especially at her own game.
I think Sakura's potential lies (perhaps) in Genjutsu, if she took to that like Kurenai has - and used that alongside her taijutsu, she could surpass Tsunade in that aspect... maybe.