Board Thread:Versus Debates/@comment-26104757-20170223224954/@comment-27924662-20170226135806

Itachi 's knowledge is vast but that 's not why he is the best battler  His ability to peer through other's soul and use that info in battle is what made shisui and itachi most gifted off the uchiha clan. That's why he's able to beat the so called battle knowledge fighter fairly easily Like the mizukage(perfect jinchuriki), Oro(fought in 2 wars I believe) and so on. Especially those with god complex/arrogant types are beaten pretty badly. Onoki could lose this eventually if he falls even once for genjutsu traps.