Debatable as Roger’s pathetic AdCoC couldn’t split the sky while rookie Goofy could lol.
Idk man, Kaido couldn’t defeat Yamato while Yamato was just another mosquito to Ryokugyu lol. Sure Ryokugyu has better Haki than Kaido but he wasn’t using his Haki when he fodderized all the characters who nearly killed Kaido.
Ask Blackbeard, the future strongest motherfucker in the history of the manga, what he values more between Devil fruits and Haki lol. There’s a reason this man hunts for Devil Fruits and doesn’t just have his crew train Haki. Hell even Kaido’s whole strategy to become the Pirate King was literally based around him creating an armada of Devil Fruit users, not Haki masters, lol.