But, naruto beat him one on one. ..? Then there are itachi, nagato, obito.

Man, this thread is going wild. XD

Let me make it simple, itachi won against perfect sage mode kabuto while protecting EMS sasuke in between. Also, I believe itachi has put someone under genjutsu without them looking at him, by using his finger if I remember it correctly, and it was either naruto or kakashi I don't really remember.