jiraiya's got too many years of experience to be outdone by a chuunin medical ninja.. the man GREW UP WITH TSUNADE!!!!!!!!!!!!! dont you think that maybe jiraiya would know a thing or two about fighting someone with monstrous strength??? i mean.. dont get me wrong.. sakura's no push over.. but against jiraiya, i dont so.. sakura needs time to heal herself if shes hit.. and you're not gonna get that kinda time fighting a sannin..
now if you're gonna argue with that, please give me a viable reason.. i'm not stubborn.. if you can find the right reason, i'll change my mind.. but i just dont see it..