Board Thread:Theories and Speculation/@comment-36512555-20200202084241/@comment-32685487-20200207234406

The stats don't account for anything extra, no KKG, no Jinchuriki powers, and no Sage Mode or Senjutsu or Curse Mark stuff. So plain old Sick Itachi has those stats on his own.. no Sharingan, No Mangekyo Sharingan, and No Susanoo, SoT or YM involved. Jiraiya's are without Sage Mode involved of course.

Also yes, the common ABC logic doesn't work in Naruto that is true.

What I was saying before still rings though, as Jiraiya would need Frog Song to have a way to actually defeat Itachi. Because Jiraiya with Sage Mode wouldn't be too much different than Kabuto with his Perfect Sage Mode boosted by Sage Transformation and though Itachi didn't want to kill Kabuto and instead wanted to save him along with wanting to release Edo Tensei he still held his own quite easily against Kabuto who only managed a few sneak attacks to actually touch Itachi. Mind you Edo's are weaker and have less chakra than their living selves, albeit their chakras do regenerate infinitely. So a more even battle would be Itachi vs Sage Mode Jiraiya.