sasuke because he was better trained, remember how he whopped naruto ass back in a day, and absorbed his nine tailed chakra? sasuke is pure badass, in any age.
You can ask this every single person who hops to Naruto's tip after a talk.
Nardo attracts males (Gaara, Nagato, Kakashi etc.) via tnj and Sasuke is a chich magnet from doing nothing...Doing nothing is the reason why he is a chick magnet.