The strongest Sannin is....

[DevonV]

I'm surprised you live in B.C ( I live there) But Orochimaru can't compete with Jariya due to Orochimaru is sick.

Neat and fair enough.

 

[Myogen]

All the sannin are top tier, however Tsunade specializes in support so she falls behind the other 2 sannin in combat prowess who are more or less equal with everyone else in top tier. Their match would be decided by circumstance (knowledge and plot).

 

[Wakoo]

j man all the way

 

[Slug Princess Tsunade]

They are equal in strenght. Tsunade beats Orochimaru, Orochimaru beats Jiraiya and Jiraiya beats Tsunade.