Shanks lost(voluntarily sacrificed?) his arm to the Sea King. He was scarred by Blackbeard.
Kaido was defeated 7 times, captured 18 times. He was severly scarred by Oden.
Blackbeard Pirates got one shotted by Magellan. Teach was defeated by Whitebeard missing half his brain. He ran away from Akainu.
Big Mom’s clean. Even Roger chose not to confront her when he stole her Poneglyph.
She managed to equally fight with Kaido using only Napoleon after she’s been getting handcuffed with Kairoseki that drained her strentgh prior to the exchange.