Another one I have is of the original 4 Yonko, Whitebeard, Kaido, Shanks and Big Mom, big mom was the most interesting and well written
Everything from her back story to her personality to her abilities where all awesome, but it feels like Oda took an amazing painting and just threw buckets of paint on it because while big mom as the most interesting back story and most fun and creative abilities what he did to her on wano was atrocious it just tells me adding her there was an after thought but even the way she got her abilities is more interesting than anyone else's