its sasuke in my opinion, really i can see if u put naruto or sasuke, but wtf ever thought that he favors sakura, he hardly gives her attention, he thought that she does what she does only cuz shes got the huge crush on sasuke rather than the fact that she actually wants to be a strong ninja, he seems to favor sasuke the most, but he does also favor naruto cuz he admires his fighting spirit and the ability he had to rise over the problems he was born with