As far as I can remember during the start of the manga Sasuke > Naruto
When Naruto summon gamabunta Sasuke started to feel insecure. At this point may be we can say Sasuke = Naruto (Naruto has 1st-2nd degree kyuubi cloak)
But when Kishi showed the impact of Naruto rasengan to sasuke chidori...
Greatness have many forms. Every individual may shine in a different way, that is for sure in manga and in real life.
However, we can't compare the characters power directly unless we see them fight, we can't conclude who have achieve more greatness in different fields. Ex. Lincoln vs Mozart vs...
This is absurd... If we use this kind of logic, then Guy is also a Senju same with Rock Lee... They all have the same hair style of Hashirama. Since Madara always make fun of Hashirama's hair and dress (http://www.mangapanda.com/naruto/623/3) He made a fashion change when he was old enough to...