OP why do you do this? Wow, this is hard as hell. I just... love them all, for different reasons.
I'm not gonna lie the first one that came to my mind was Hollow Knight... but all at them are great. The closest answer I can say is between Hades and Hollow Knight, depends on the day.
I'm just gonna say I'm glad all exist, and not just them but a lot of great indies that have come trough all the recent years. Like Overcooked, Into the Breach, Crosscode, Disco Elysium, Stardew Valley, Dead Cells, Edith Finch, Nigth in the Woods... and a thousand more awesome games.