Sasuke could easily bring Konoha down when a leader.
He does not care about Konoha. He wants to change the system of it - meaning he wants to change the way they do some things. It affects other people, so I'm not surprised if Sasuke would.
Sasuke is a better leader than Naruto. Not even once I remember Naruto taking charge of a team as a head, leading them, and successfully completing the mission. He has always been lead by Shikamaru, Kakashi, Sai, Yamato, Sasuke and Jiraiya.
Note: The war arc. leadings were by Kurama - not Naruto. Pain arc. he was alone.
Whereas Sasuke has lead some; Team Taka and Team 7.
Sasuke has maybe never failed to complete a mission. He has always got the objective of his mission, even though he has suffered great losses. However, he does do his missions sometimes in an evil way. While fighting Sasuke, Danzo took Karin as a hostage and threatened to kill her if Sasuke did anything. This still did not stop Sasuke from attacking - he pierced their both hearts with Chidori.
To me, Sasuke is very good leader, but lacks emotions. To do everything in evil way, will spread hate and can possibly bring your village down.
Naruto lacks logic; he simply can't lead a village, if he can't do the same with a team.
To me, both are a bad idea. Kakashi should be Hokage, and Naruto should fight as one.