I think King would win having more abilities like Flight and both have lots of endurance, so I think King would win but it would be hard.

King High diff

King will win

Logic is simple, King is right hand man of kaido while katakuri is right hand man of big mom. We all know that Kaido > Big Mom, so King> Katakuri

King extreme diff

King wins cuz he’s hotter unmasked

Katakuri got powercliffed HARD. Kaidou can clearly oneshot him, but can't oneshot the Scabbards.