Carl

Itachi stored Shisui’s sharingan into a crow, which was last used to defeat kabuto via the kotoamatsikami which is obviously the most powerful genjutsu other than the infinite tsukuyomi. When an uchiha awakens their sharingan there is no telling what power they will awaken in it. Shisui got lucky and got the most powerful. So I would put Shisui above itachi on this list. 🤷🏻‍♂ that’s just me tho