Are you really that dumb? "The one 12" just cause naruto is a ninja doesn't mean jack squat you know? Also if you'r going to say that ninjas are swift and cunning then you have naruto pegged the wrong way for his not very cunning and doesn't boat well when come to being silent at all. Tsuna has the hyper vongola intuition that helps him think on the fly and increase his sense for battle better then naruto really. It can even help him predict the movement of his enemy faster then naruto can act.