If I had to choose between Sasuke and Naruto in strenght point I would've choose Naruto.

If it is Kyuubi that is stronger then Sasuke not Naruto, then you might can say that it is the Sharingan that is stronger then Naruto ? Hm let's just wait and see, I don't care that much though, just like Naruto's personality a bit more then Sasuke's.