Raid Suit Sanji felt so much Animal King's nameless charge attack that Luffy feared for him. Sanji was pathetically afraid of what was happening, and he was powerless.
He got stomped into the ground and got up only an entire chapter later (many things happened in the meantime). Sanji himself implies that he could barely tank the attack only because of the Raid Suit.
Sanji seems clueless about what happened after that he got hit: so either he was briefly knocked out, or he was hit so hard that he needed time to recover and get up.
The very same attack that stomped Raid Suit Sanji into the ground and needed him an entire chapter to recover and get up... Zoro can block without struggling more than needed. No, not only that, he can block that... while talking at the phone at the same time. Literally.
The gap is huge.
Sanji is a clown to Zoro.
Well just like Queen to King.