Hell even Tayuya ends the majority of battles against normal ninja. It's like Kishimoto compiled every non-genjutsu broken ability he ever invented and compiled it into one Frankenstein's monster.
No ninja has as many forms of defence as he does. It is almost impossible to kill for good. Has about 6 built-in ways to evade defeat from his snake shedding, becoming one with nature, hiding like a mole, Karin healing, Hozuki hydrification. Not to mention he has a country-sized summon and Edos (most of which have OHKO broken abilities too like Toroi, Hanzo and Haku.)
There are very, very few who can stand against him and his too-ridiculous-to-be-fair arsenal. I put him around #7 when he's brought all his toys. Good thing he's batsh*t crazy or Kishi may have never found a way to dispose of him