WHICH SUSANO'O?

THE BEST SUSANO'O

Susano'o is a weapon that only the chosen ones can use. The legendary sennin's ultimate jutsu while fighting against juubi. The strongest ability available to those who have awakened the Mangekyou Sharingan in both eyes.

The final battle between Sasuke and Itachi was the first time when the Susano'o was introduced to audience. It was the last weapon in Itachi's arsenal. Belonging to Itachi even made the Susano'o much more awesome.  Then we learnt that there were others who could use Susano'o as Sasuke, Madara, Kakashi even Hogoromo and Indra which caused  to lose its value and Susano'o became an ordinary jutsu. Madara's Perfect Susano'o took us to next level in terms of power and size which made Itachi's and Sasuke's incomplete Susano'o to look even worthless. Then Sasuke had The Perfect Susano'o, and merged it with Kurama as once Madara did and used it as a vessel to gather all the tailed beast chakra and released as his strongest weapon, Indra's arrow.

Hagoromo has the strongest Susano'o which repelled Juubi's attack easily. We saw Indra's Susano'o, but possibly it is weaker than Sasuke's and Madara's Susano'o. Without power-ups, that is, Itachi's Susano'o without holy weapons as "totsuka blade and yata mirror" and Sasuke's Susano'o without bijuu chakra, Madara's Perfect Susano'o has the second place. It is too massive maybe the third biggest thing after Juubi and Hashirama's "Senpou Shinshu Senju" and it contains enough power which can smash all things in this universe with a single stroke of its blade. Maybe even the power-ups will not be enough for Itachi's Susano'o or Sasuke's Susano'o to win against Madara's Susano'o.(Because Itachi's Susano'o is not a complete Susano'o. His complete Susano'o was created only for the game. It is nothing more than a bug in size and power compared to Madara's Susano'o. We don't know the exact repelling power of yata mirror although zetsu said it can repel any attack. Same was told for Nagato's "Shinra Tensei" but Naruto in six tails Kyuubi form withstood it. Also the mirror does not cover the Susano'o completely. Susanoo's back is susceptible to any attack. And it is unclear that the blade has enough power to seal Madara. It sealed Orochimaru but he was summoned easily by Sasuke from the Anko's curse mark. It can give us a clue about how weak the blade's seal is. However, it is really hard to seal Madara. Gaara with other Kage tried to seal Madara and failed. Ichibi with other tailed beasts and Gaara tried to seal Madara and failed. It is obvious that Madara's Susano'o cannot be sealed that easily. Sasuke's Indra arrow with all tailed beasts chakra did nothing to Naruto in three-headed Kyuubi form. Both Sasuke and Naruto failed. Bijuu dama rasen shuriken+rasen shuriken countered the Sasuke's Indra arrow made of all tailed beasts chakra.

Obito/Kakashi's Temporary Perfect Susano'o is the weakest even it is a complete Susano'o. It has nothing special except kamui shurikens.
My list is as 1. Hagoromo's 2. Madara's 3. Sasuke's 4. Itachi's 5. Obito/Kakashi's 6. Indra's
* We know too few things about Indra's Susano'o. It seems like ordinary small-size Perfect Susano'o.
** Shisui's Susano'o and Itachi's Perfect Susano'o were only in the game. So, they are out of my list and Itachi's Susano'o was taken into consideration as it was in manga and anime.