good point sir, but is naruto is an uzumaki and learned sage thru training + senju i think is in the blood already.. additional power from sage + senju rev it up..it think what obito gave him is not only black kurama but also the other tailed beast since obito did once tried to be bijuu...madara was dis appointed because the edo hashirama did not gave him what he was expecting... sasuke is powerful but since we dont know the extent of it until he uses it i think they are in par with naruto since the hagoromo power up. ^_^V