Quote Originally Posted by AssertnFailure
Yeah, I think Itachi could beat Hidan easily.

Just because Hidan is physically immortal doesn't mean he's mentally immortal.....and he probably has a weaker mind that Kakashi.

But what could Itachi use in a genjutsu to damage Hidan? Stabbing him like he did with Kakashi ( or any pain based genjutsu) would just excite him and I doubt Itachi knows any represssed memories that Hidan has.