Sanji vs King
1. Aerial Battle
2. Momo Plotline
3. We might findout if his Diable Jambe related to King's fire in his back.
Sanji vs Queen
1. Pattern of the battle between 3rd strongest.
2. More development about Judge which lead to knowing more of Sanji's mystery.
To me:
Sanji vs King:
1. They have a similar power set and design so it would be aesthetically pleasing.
2. They have a pre established plot where Oda couldβve easily utilized Queen to stop Sanji but chose to use King.
3. They share other similarities like a legendary lineage and Big Mom tried to recruit both
Sanji vs Queen:
1. The germa plot line would be a good way to actually bring in a flashback
2. Queen and Sanji are both incredibly loud and expressive individuals so personality wise itβd be an entertaining fight.
Why I think Sanji should fight both:
1. King and Queen will more than likely share a flashback since theyβve both been with Kaido for over twenty years and probably joined Kaido when Kaido was being experimented on by vegapunk so having both in the same fight will make this flashback flow easier.
2. Oda has not differentiated between King and Queen power wise and has connected them throughout the entirety of the raid that those two fighting in tandem would fit with their current portrayal
3. Oda connected both of them to Sanji and has not connected them to any other character.