Honestly, trying to use Burgess to cap Sanji’s ceiling is just pure cope. If Teach actually becomes the final boss with awakened absolute darkness/Davy Jones successor, his core crew is getting hit with the most ridiculous endgame buffs imaginable. Power creep hits everyone at the top, so it doesn't matter who the matchup is. Whoever stands in Sanji's way at the end is going to be a monster because Oda is clearly ready to give the Chef the ultimate wank before the story wraps up. People just use these matchup debates as a proxy to downplay Sanji because they can't handle him being that strong. It’s transparent as glass.