This No-Limits Fallacy with Yata Mirror is just idiotic. Fujitora is stronger, faster, has much more stamina, durability and endurance, not to mention immune to Genjutsu (not because of his blindness, but because Chakra and Haki work too differently to apply the Rule 13). He'll crash Susanoo with his bare hands before Itachi can react. Amaterasu is too slow and easily countered by gravity. The only winning option for Itachi are water jutsus, and that's stretching.
Anyway, Fujitora no-diffs. He crashes Itachi with his gravity. Naruto characters are not on the level of One Piece until middle of Shinobi War arc (and only few of them)