To start off, people tend to boost their favorite characters over another character despite feats proving otherwise especially after a single power up, like people saying Zoro is stronger than Luffy, Sanji is stronger than Zoro, or that Zoro is leagues above Sanji. So I wanna try and scale their strength.
Right now Luffy is far above the other Straw Hats by a ridiculous amount and the chance that he may get even another boost solidifies his strength as top dog by leaps and bounds in the Straw Hats.
Luffy has a balanced combination of speed and strength as well as Advanced Level of Observation Haki and Armament Haki, the two types of Haki in which Sanji and Zoro respectively specialize in. There’s no doubt that he’s the strongest and it really shouldn’t be up for debate.
With Zoro, his power output is insane as shown with Pica as well as being able to one shot him as well even though he was covered in Armament, and now with him having Enma it’s clearly going to increase even more.
Anyway Zoro couldn’t beat Luffy in a 1v1 fight, I’m not even sure if him and Sanji together could defeat him. Sanji is incredibly strong but he lacks feats of immense physical strength. Sanji’s speciality is his speed and Observation Haki; throughout the course of the manga we see several speed feats for Sanji and him being great at evasion and quick reflexes.
The Raid Suit which grants Sanji the ability to fly and strengthen his kicks with propelled boots, and serves as an armor to protect him from attacks, brings Sanji closer to Zoro’s level so much that a fight between them could go either way.