I just wanted to take a sec to explain what i believe is narutos greatest strength.
I think it is his ability to take his weakness and to make it into his greatest strength.
Examples of this are:
Naruto has pathetic chakra control, (although it is caused by haveing to maintain the seal,)
and now his strongest technique requires intense chakra control(the highest level of shape manipulation), the rasengan and all its variants.
Naruto failed miserably at simple clones,
yet he masters a more difficult technique, the shadow clones and makes it into one of his signature techniques(currently he can fight a war pretty much with those clones)
Naruto was a failure at controlling himself and could not remain still(he had the nickname the hyperactive ninja)
yet he masters a mode(sage mode) that requires perfect stillness, and became a perfect master of it in a few weeks....jman never mastered it in a lifetime
naruto was very emotionally driven, and due to that could not control much of kuramas power
yet he learns to control his emotions, and controls kuramas power.
he was last in his ninja class
yet he is the worlds strongest genin(and/or ninja), and if he gets anymore powerful will become the worlds strongest (alive) shinobi...(only thing stopping him would be obito....and that is due to obitos unique powers.....edo madara doesnt count as he is a zombie.....)
he was hated and deemed a failure
yet he now is a hero
there may be a few more but simply this is his greatest strength....all of his strongest techniques came from his weakness'
All of this stems from his passion to be hokage and to never give up and to protect his friends.....but i think this is his greatest power...the ability to turn his weakness' to strengths
What do you think?