@RobZilla:
Luffy lost to Caesar, Zoro got captured by the NFM pirates.
We never saw an end to Sanji's fight with Vergo.
Doflamingo is an extremely powerful character and the major antagonist of the arc, no one is going to defeat him but Luffy.
Zoro has fought absolutely nobody of note, strength wise, post-timeskip.
You can't use what people expect to happen as a factor lol.
With all this in mind, and with the fact that Sanji and Zoro have always been portrayed as being as strong as each other for the entire series, I have to say to you sir…No. Just no.
Luffy lost to ceasar not because he was weaker but because of his df. Zoro got captured not because he was weaker but because he can't breathe underwater. Completely different from Vergo overpowering Sanji's leg without even using his bamboo, and again different from DD blocking Sanji's 2nd or 3rd best attack to date with just his arm and without budging and then proceeding to use a technique that would have killed him if not for Law.
No one said Sanji would beat DD, but for someone who told zoro to stay back and that he will be the one to save the crew, only to end up getting beat in 30 seconds and having to get saved instead, that doesn't make his 2 years of training look good at all.
Zoro at least managed to get out of Fujitora's hold on his own, while Sanji required Law's help in the same type of situation.
As for what people expect to happen, the reason people expect it is because of how bad Sanji has been performing in the New world.
It's true that Sanji and zoro have been portrayed equally for most of the series, and with wano coming up and zoro getting a power up, does it not make sense for Sanji to get one aswell in wano then? Rather than zoro get's stronger while Sanji gets nothing which would ruin the rivalry.