the only people I see soloing every1 is madara... Itachi died because he wanted to, plus he wanted to give his eyes to sasuke. It was clear, from sasuke vs itachi, that itachi was not even trying to kill sasuke; but was trying to make sasuke tired, so that the cursed seal would show up... I mean everyone should know this, it's pretty clear in the naruto part 1 and naruto part 2