Unlike Obito and Madara, Nagato accepted that the world was rotten and embraced reality for what it truly was. Obito and Madara on the other hand tried to escape from this very reality with their Infinite Tsukoyomi dream. They can’t hold a candle to Pain. Dude was just build different. If this were any other anime genre, he would’ve won against Naruto.
I mean I agree for Obito, but Madara clearly states the exact same things, his solution is different because that was what was presented to him as the only way, although I also agree with Pain much more, if we are strictly talking of peace being the end goal, only Madara's works, if we are talking about reality, which is what I subscribe to, then you fight for your justice and I'll fight for mine sums it up perfectly
The initial goal of the Akatsuki Organization or Red Cloud was actually good, namely creating true peace, but after Obito arrived, everything changed drastically, becoming a world class criminal ninja.
The Pain character teaches us that everyone has their own suffering. Enduring suffering, one can become God. But giving others pain won't end your pain. One must help and overcome others' suffering, then it can bring an end to pain/suffering (the true work of God)
The best written character with the best ending for the character itself. Madara died forcefully for unnecasrry plot twist who destroys the power scale of naruto. Obito became good just for some talk no jutsu after all the massacre his done. And not contributed anything to mc Sasuke just became some naive litte boy who lost his way and always follow his stupid ego But pain from the all his trough the massacre off his village. And want to find the real peace without unnecarry stupid context from other. And bring the best development mental to naruto to accept that all human not pure, not his people is good and not akatsuki is the villain. The philosophy of pain really bring another level to this series. I'm sure know why people love eventually he is the "villain" of this series.