i am speaking from a neutral standpoint.
Sasuke had more of a reason to attack itachi, and had more hate directly for itachi. so his revenge against itachi is completely justified. His revenge against danzo is justified, as danzo wanted the uchiha dead. But sasuke has many more reasons, to leave konoha alone, and to just get busy remakeing the uchiha clan.(as it was his second goal)
Naruto on the other hand has a great reason for destroying konoha, as the ENTIRE village hated him and abused him. The third was neutral to him. And iruka only became a friend after naruto was alread like 10. Just think for a minute. Having hundreds of people looking at you, and hateing you for killing their loved ones(even though it didnt happen to all and you arent responsible.) If you run along and you trip, nobody helps you up, and people may even step on you. Then later in your life after trying for 13 years to make friends you finally succeed. Then later you learn that a certain someone, caused your parents to die, and for you to endure all the suffering.
So both have their reasons as to why they could kill people. Sasukes to destroy the village is completely uncalled for, as he is not respecting itachis wishs. Him killing the leaders responsible is fine but the innoccent people, is not.
Naruto has both sides of the hate here. He now has someone to hate for causing his misery, and he had an entire village who made him miserable.
In my opinion, narutos suffering was worse. He endured YEARS of mistreatment, and abuse. Sasuke endured a horrific event that scarred him for life, but he was PRAISED. If my brother killed all my family, i would eventually get over it much better than if i was harrassed and shunned and blamed for killing people, for like 13 years.
But that is just me, and my OPINION
