Strongest version of Sanji, Franky, can beat.

[B Rabbit]

They fight at a random waffle house in Atlanta.

 

[GoldenHeart]

Idk if Sanji really grew much if at through post-TS tbh
With that in mind id say Sabaody Sanji
If he did though then i guess some early post-TS version of him

 

[OtherGalaxy]

this is just an average shift for a waffle house employee