Eh both amaterasu and tsukiyomi counters jiraiya
It takes one second for tsukiyomi to work and amaterasu is very fast
It takes one second for tsukiyomi to work and amaterasu is very fast
If so can't they break Itachi's tsukuyomi?
Honestly, there are many practical ways to battle Amaterasu. Didn't Sasuke manage to run away from it for a couple seconds on the roof?
Jiraya is very fast in Sage mode, not Ay level but fast enough I'd say. If he knows it's coming i think he's evading it.
I have a hard time seeing Jiraya beat Susanoo though