Shikamaru never said they were stronger than him, with temari he outsmarted her and did the same thing with Hidan, besides, he wanted revenge so he said he would never be at peace if he didn´t get revenge or die trying.
He never beat Temari, he just outsmarted her to fall for his shadow possesion and then gave up so Temari was stronger and would´ve beaten him if he didn´t quit cuz he didn´t have any chakra left.
Bottom line, Kisame can´t beat Jiraiya, if he could then he would kill him in that hotel, take naruto and then flee with itachi but he didn´t do it and Jiraiya didn´t help sasuke cuz he wanted sasuke to do his own thing which he regretted afterwards, read the manga and don´t make useless claims u can´t back up just cuz some statements aren´t true.