I think we need Haku and Sasori and the list. Haku is a real prodigy with Kekkei Genkai which is quite unique. He had greater potential than Zabuza himself.
Sasori was killed by a Chuunin+old Jounin, but Kakuzu was killed by a Genin as well. Sasori got the worst possible match-up. He is one of the most deadly shinobi we have encountered, and has had Sandaime Kazekage as his puppet. Great waste for such a shinobi to die.
Sandaime Hokage is also a genius. He is the person who was called The God of Shinobi, and he knew every jutsu in Konoha including late Yondaime's technique Shiki Fuujin.
Originally Posted by Sharingan Lord
Sure you can, just wait for Mikey to put you on the list ^^
What is your definition of genius? Who would you want on the list as well?