Board Thread:Versus Debates/@comment-26958911-20151010214426/@comment-25122992-20160104193056

Firstly, please, don't try to twist my statements. Itachi probably may be not able to use other types of genjutsu aside from visual + finger (whatever kind it is), but he must be fully aware of these types existing in the ninja world, especially when it's said that the genjutsu is cast via the particular human sence(there are 5 of them), which really means visual/sound genjutsu aren't the limit of it (for example, Kurenai's genjutsu clearly was neither visual, nor sound type), so the chance of Itachi recognizing a sound genjutsu preparation upon hearing Ma/Pa screams is pretty high.

Secondly, I didn't say Itachi is completely immune to any genjutsu as well. What I was trying to said is that Itachi clearly has a far better genjutsu resistance than most of the characters of the series (but I don't imply "than any of them"), of cource, thanks to his impressive genjutsu skills, thus he has a better chance to counter any kind of genjutsu than someone else in his place (than Nagato, for example).

Thirdly, of cource, Jiraya has enough knowledge about Itachi's ablilties and battle style, but all of it must be proved useful in an actual fight. At the same time, while he encountered some of Itachi's ace MS techniques, there's nothing that suggests he knows all about the mechanics of Amaterasu, and Susanoo (with both artifacts included) would probably become a huge surprise for him. Itachi possibly has not really detailed intel regarding Jiraya's skills, albeit the basics of his battle style must be familliar to him (especially his focus on toads' support and cooperation), and some of them he also witnessed by himself (Toad Stomach, for example). Regarding intelligence, I don't try to underrestimate the one of Jiraya, but there's no doubt Itachi is smarter than him in this way.

And, finally, I should say that the battle is reduced by too many if cases: "if Jiraya could enter SM", "if Itachi can land Amaterasu/Tsukuyomi on him", "if Ma/Pa would succeed in casting Toad Chant", "if Itachi would be able to pierce Jiraya with Totsuka blade" etc. Personally I'd give 5 fights from 10 for both of them (so don't try to accuse me of Itachi's preference either).