It's clear that itachi cannot defeat all 6 paths at once(yeah I said it) :scorps:
So this is itachi vs deva path. Who wins?
Itachi MS tysukiyomi Amaterasu and susanoo
Vs
Pain deva path shinra tensei bansho tenin chibaku tensei and chakra blades
Who's win?
It's clear that you are either a hater (of Itachi) or a massive fan (or Pain). Nothing else is clear past that. In the Itachi vs Nagato fight, there is no 100% winner, so your
opinion will simply be your opinion. Trying to present it as fact made me think that you've decided to ignore any debate possibility if Itachi were actually weaker than all the paths...in fact, you decided Itachi would be as weak as just 1 path. Good start...
Yes, Itachi would win against ANY path by a simple thing called genjutsu. Nagato was trained by Jirayia -> Jirayia in base form wasn't a strong genjutsu user, just had the basic knowledge -> Nagato will not have a good genjutsu defense.
With this said, also Itachi will have the upper hand on him with the legendary items on Susanoo... one that seals, one that repels everything.
You know, I might create a vs thread something like ... 20% Itachi vs Nagato full power not sick. Itachi has no knowledge of Nagato and cannot use genjutsu lol. Who wins? I think Itachi. FANBOY POWER!