Tsunade fans arereally ridiculous. I try to defend her in so many threads, from being underrated, and then there are threads like this that embarass objective posters like me.
You've just invented multiple abilities for Tsunade... immunity to genjutsu (debunked on numberous threads on in the last few days), and now her slug is apparently immune to fire... where was that proved? Sure, the slug can shield her... maybe once... but then the slug will be torched badly, and what will defend her the 2nd or 3rd attack? She's got one slug, Jiraiya has heaps of frogs to attack with, and an array of attacks against which she has no real defence to. Her big ace, her brawling skills, are virtually worthless against an opponent who rides giant frogs that jump hundreds of feet (given his long range attack prowess), and who can jump very large distances himself while in Sage mode (during which he will never run out of Chakra, while Tsunade constantly has to regen from being smoked by devastating techs... terrible match for Tsunade.