Sasuke any day.
With genjutsu, you can control anyone and do a lot of stuff. Sharingan is also useful for cheating in exam without being detected.
Sasuke can also do everything naruto can and something of his own.
With his teleportation, life would be much simpler.
Also, i don't want a beast inside me talking to me or bugging me or watch me 24x7, that is annoying and if someone came to know about it, people might hate me because of it.
And if anyone used any technique in front of me, i can copy it, that is also very useful for people involved in sports.
Honestly there is no contest however you look at it.