Mayn the three sannin lost to hanzo and from what we saw hanzo do against Nagato and Misfune, that guy is dog poo mayn, weak!
The name sannin is also overrated, sure the three of them are strong individually but that name is overrated, they got the name for LOSING for kami's sake, they were all beaten up and out of breath and hanzo didn't even have a single injury nor did he even look like he had just been in a battle and them he gave them that name for their impressive team work.
The name sannin denotes to the efforts of THREE people, it aint as great as it is individually, unlike other names like kami no shinobi, which denotes to the efforts of ONE person, and yellow flash also denotes to the efforts and achievements of ONE person, sannin is a shared name that denotes to their achievements as a team, in fact, after they split up, none of them achieved anything alone accept for oro who beat the fourth kazekage and sandaime hokage, tsunade was dominated by pre time skip kabuto and Jiraiya was dominated and killed by pain, never saw him beat anyone, also failed to defeat oro win he tried to stop him from defecting.
I'll admit oro and jman are kage level but tsunade? Overated , kabuto was holding back because he said they wanted to take her in alive and she still lost, she couldn't even track his movements and was quickly incapacitated, na, current kakashi can solo her, if kabuto was too fast for her then kakashi is more than fast enough, raikiri through the chest and kamui katsuya.
Orochimaru with edo's is a bit too much, even if it aint kages. Kakashi still has one more kamui though, if they can trap oro and the edo's in shikaku's shadows and then have kakashi kamui oro then they will be good to go, kakashi will be out though so no more of him. Yamato can then use wood release to keep the edo's incapacitated so that shikaku can be free to use his jutsu again.
Jman, I don't know what they can do against swamp of the underworld since they don't have raiton anymore because kakashi is incapacitated after using kamui twice, his raiton would have helped, the swamp being an earth style jutsu, I would have assumed that streaming raiton chakra into the ground would cancel it out like sasuke was able to cancel out deidara's bombs with raiton because they were earth based, but he's out now so jman would finish the fight, or maybe not, yamato will just grow trees from the ground and they will use them to climb out of the swamp.
Neji can act as defense with his rotation against Jiraiya's fire techs and hair techs. Plus yamato has wood locking wall and earth walls too. Gai can keep up with sage mode strength with his taijutsu and gates and he can surpass that speed in his gates and overwhelm Jiraiya, Shikaku's shadow will also be chasing him around while he has to deal with Gai's Taijutsu while shikaku also thinks up a plan, asuma um...yare yare this guy is useless, sacrifice him by making him help guy and shikaku, I have no idea how the hell they will deal with gamaken and other summons, ma and pa will also pose a threat with their support ninjutsu, manda is also there and oro' s three headed snake.
Mayn as much as I hate to admit it, the sannins will rape the jounins, I just think the summons give them way too much of an advantage, oro's manda and three headed snake plus edo's, katsuya plus Gamaken, gambunta and gamtora plus ma and pa, hell that would be way too much, they could just use summons alone and just hang back and let them do the job if they wanted to, if summons were banned them jounin would win hands down but with summons to deal with too, no ways, sannin rape them jounins.