Why Orochimaru is the best villian.
The most underestimated villain by many, here is why:
• He hold out Naruto in 4 Tails form, with Naruto barely touching him in his weakened state.
• His immortality is unable to beat, even having been killed he can be reborn in a new body baring his chakra, such as the Curse Mark victims or snakes.
• He was able to spy within Akatsuki and Root itself, attaining all knowledge about both groups, he even knew Obito and Madara's plans. And perhaps he knows the story behind Obito too.
• He was able to manipulate the entire Sunagakure by being Kazekage without anyone noticing, even the elites. Making him the master manipulator.
• The 2nd and only person to know and use Sennin Mode, even though his body cannot fully adapt to its properties.
• His an expert in working with Hashirama's DNA
And thanks to Orochimaru's extensive knowledge and skills, prototyping on Danzo and Yamato, Madara was able to get Mokuton due to Tobi's failure to, he even recreated Tree World and Flower World. Thanks to Kabuto for putting his work out.
• Was worshipped by Hiruzen as a "once in a generation prodigy".
• He knows ALL MADARA'S PLANS.
I think this guy is the most underestimated character in history of Naruto, though he shows a lack of interest in battle, he is really powerful.
And if you dont think Kishimoto will make him powerful, guess again he is the leading Villain in Narutoverse, and the first.