Hmm. Kabuto and Sasuke are both at sannin level but they have no village and are rogue ninja so they can't be titled as sannin. However i do believe Sasuke could kick Kabuto's snake a** anyday. i do think that Sakura, Naruto, and Sasuke should be the next great sannin. They should be the ones that the generation after Knohamaru's generation idolizes as the great sannin.