I thought with this arc that Oda was actually stepping away from his typical battle set up. When he had Zoro on the roof, my hype for Zoro vs King dissipated. Off the top of my head, didn't Sanji clash with King more than Zoro? In my mind, if Oda was willing to have Zoro fight with Luffy, then it wasn't a huge stretch to have Sanji fight King. Now Oda wants to continue his traditional arc battle set up. He can do that. I wanted to see Sanji vs. King, and maybe I still will in some sort of capacity.