Out of all the villains that turned good in the end(which is basically all of them), which is the one you guys felt would have been better off dying bad?
I think it's Pain, his mind shift was the only one that made absolutely no sense for me, except maybe Orochimaru but he's still alive and we don't know his true motives.
Obito turning good really got to me. He killed thousands of shinobi, took over Kirigakure and their Kage, manipulated Nagato, killed Minato and Kushina, and attacked Konoha. Now he's going to heal Naruto and that'll somehow redeem him.
I have to choose Obito, reason why is simply because he was the one who started the process of the war after listening to Madara's Goal. He is the reason of Minato and Kushina's Death, reason why the Jinchuriki's are dead Death of the 4 Mizukage, etc. If it wasn't for his actions none of those conflicts would've happened.