1. ITACHI
2. KAKASHI
3. NAGATO
4. Minato
5. Kabuto
6. Naruto
7. Madara
8. Izuna
9. Sasuke
10. Shikamaru/Neji/Gaara (can't make up my mind)
You would have room if you got rid of Gaara, Nagato, Kabuto, & Izuna....
Gaara - Had a bijuu, only let Shukaku take over, or used him to fight, no real skill
No Prodigy
Nagato - Cried and killed people while blinded by rinnegan again no real skill, he was the prophecy child
No Prodigy
Kabuto - Incredibly smart & an astonishingly fast learn, but
No Prodigy
Izuna - Brother of Madara, basically his equal, they were damn near twins no need to even mention him you should've just put Madara/Izuna
And how do you not have Hashirama or Hiruzen? Don't answer that this is your list so who am I to judge