Here's a ranking of Hollow Knight's bosses; it's all based on how much fun I had playing them, not how difficult they were, and it's all subjective.

Hollow knight npc's tier list

Thank you so much @Graysen612 , I love your drawing!

I can't tell you how excited I am for silk song 🤯

Finally, we have Silksong! I could and would like to buy it right away, but I want to wait a few days for my parents to give me my allowance; I'm poor.

SILKSONG TODAY!!!

I was not ready for today.

I loved this boss, and I think it deserved a cool drawing!

The Dreamers' Masks

#500PU

I love this NPC though... we already know how it ends