Naruto. All it took was a single punch and one lava rasenshuriken for madara to starting thinking to himself that "he's done". He needed the tree to even match naruto.
Hagoromo
Anyone who says anything other than Madara are illusional. It can be debated about Naruto and Obito though, since it's unknown as to whether or not he even has full control over sage chakra.
Naruto's, his is Black Zetsu proof.
hagoromo, hamura, madz, naruto, and obito.
greatest to least
Naruto seems to be able to turn his TSB into TBB with elements, while Obito can manipulate the shape of his TSB and make them explode.
Sage of Six Paths himself ?