- Oonoki (in the battle with Madara)
- Tsunade (same as above)
- Might Guy (8 gates, meaningful sacrifice)
- Obito (way earlier at least)
- Orochimaru (he's an insane terrorist, yet Hokage Naruto lets him live in freedom)
These are all I can think of right now.
4. Gai (as much as I like him, it was plain idiocy to revive him after giving such great few chapters length goodbye from him.)
True words have been written.
I'll never understand how Kishimoto could ruin this moment as much as he did. We got the emotional past as well as the awesome speech about the "rotten leafs of autumn", yet Kishimoto threw all that out of the window a chapter later.