Board Thread:Naruto Discussions/@comment-7292165-20140715160041/@comment-24577388-20140716125632

Deidara was assigned the Ichibi, Hidan the Nibi, Sasori (Tobi as well since he replaced him) the Sanbi, Kisame the Yonbi, Pein the Rokubi, and Itachi the Kyuubi. Considering whose left, I can see Kakuzu getting assigned the Gobi, and Konan the Nanabi. Since Killer Bee was the strongest Jinchuriki (before the war), I'm sure Pein would have had to take him as well. I doubt Zetsu was assigned anyone considering he's not much of a "fighter."