The bend beak is just for laughing, still we can clearly see that Zoro is superior to King Zoah form.
Both fire projective (were used vs Marco) and the frontal attack (vs Sanji) are no use vs Zoro.
Not only he block both but Zoro was able to push King via brute force again in the sky.
That alone put Zoro to a different light than Candy boy and Marco (which had to use ad use of his df to adsorb the projectile).
The only form that surprise Zoro so far is King hybrid (but even in that form) Zoro was able to cut partially King mask.
Conclusion Oda did a good job to differentiate how powerful Zoro is compare to Candy boy (and partially Marco)