Guys I'm getting concerned, nobody mentioned Giga Rosa from Xenoblade 2
I'll do my top 5 now and then think about the others:
1. Bowser (Super Mario Odyssey)
2. Proteus Ridley (Metroid Samus Returns)
3. Torkdrift (Super Mario Odyssey)
4. Ganon (The Legend of Zelda: Breath of the Wild)
5. Giga Rosa (Xenoblade Chronicles 2)