It's gonna be either Pizarro, Lafitte, Aokiji or the 10th Titanic or all of them for all I care about. But Sanji fighting another invisible guy would be repetitive and cliche imo.
Lol why Burgess? Even if he gets a OP devil fruit (Marco's fruit let's say), it won't erase how he got treated in the past as being Sabo's hypetool. And Sanji never fights anyone who got used as a hypetool or defeated before.
Burgess is the prototype of the Sanji's classic opponent: bulky, goofy, one of the most important member of the enemy's crew, he's the captain of the 1° ship of BB while Shiryu of the 2°, he's a wrestler and so on.
Plus, his name is "Jesus" Burgess, while Sanji is linked to Satan (Diable Jambe, Ifrit Jambe).
The fact that he was used as Sabo's hypetool is irrelevant: Sanji is often used as hypetool as well (Vergo, Doflamingo, King).
He could be also Jimbe's opponent, sure, because of wrestling vs fishman karate and they are both helmsmen, but I think Sanji vs Burgess is more likely.