Team 7 cuz they have an advantage the kyuubi and the PMS. I say the the sanin are stronger but team 7 will win cuz of their advantage. I dont consider the kyuubi and the sharingan as a true represenation of a shinobi's power or strength. Cuz u dont work for it or do anything to obtain it, its like someone racing with a car while the other person runs. The person running maybe faster but the guy in the car will win cuz of their advantage. The same aplies to team 7, they will win cuz they have an advantage not because they are stronger
well genjitsu wont work against jiraiya, so sharingan is useless against jiraiya, orochimaru still takes the sharingan very lightly so can be defeated by the sharingan easily.
jiraiya can beat sasuke and sakura easily for sure.
but if naruto goes 4th tailed mode, jiraiya has to fight like his life is depending on it.
orochimaru on the other had, was kind of playing against the 4th tailed mode.
tsunade isn't that stupid to fight the 4th tailed mode like that so she will for sure come up with a tactic to beat m.
sasuke can beat orochimaru and tsunade but don't think he can handle jiraiya..
sakura can't beat any of the 3 sannin.. but in time she will exceed tsunade as the new tsunade.
naruto can't handle them that easily without 4th tailed mode.. so only entering the 4th tailed mode he can deal heavy damage to the sannins..
so basicly, without kyuubi and without sharingan, team 7 has no chance at all against the sannins.
but with them, the tables will turn from sides for sure!
that's what i think at least.