Rock lee kept fighting gaara while being unconciousness, he trained so hard all his life that he had marks in his hands. He recovered from a dangerous operation and he went to fight kimimaro right away.
There's no one with more raw spirit than Naruto! He's ruled by his own emotions, rarely obeys his orders.
On the other hand, Lee also has a fearsome spirit, but it's not enough to match Naruto's! =D