So we know sasuke isn't showing his full power mainly because it would make naruto look weak so kishi is holding it off a bit till naruto gets another power up to get even with sasuke then sasuke will show his true powers.
First of all, Itachi gave sasuke all his powers, So logically that means that sasuke has not showed his true Ms powers yet. When he does, then it will be sasuke at the top of the top 10 lists.
Sasuke wil have:
His True Ms powers
Totsuka blade and yata mirror
[Elder eyes, Rinnegan or Juubi eye]
itachi transferred all his jutsu's to Sasuke which gives him all itachi's powers and sasuke's own powers.
After this power up, Sasuke > all.