That's a daring opinion. Katakuri's speed should be a tier above Sanji's, his CoO at least a tier above Sanji's. AP is debatable, Sanji might have more raw AP but Katakuri's multi-armed attacks might actually make him better at hammering opponents.
It's hard to see Katakuri struggling anywhere except possibly putting Queen down permanently. That's Queen's only hope of winning
Poison, plagues, invisibility and laser/explosion spam provide him some opportunity to hurt Katakuri. Even if it's just chip damage over time.
That'll turn this into a battle of attrition and a dinosaur has the advantage there.
Katakuri's own AP is also very unimpressive, and Mogura isn't worth all that much when Queen can additionally shield himself with hardening.
Queen has low chances though, if he doesn't have decent speed to effectively fight back.
Katakuri is still probably the favourite, but I'm hoping that Queen gets decent feats to enable me make a case.