Seth has a point when he says that their are Sanji fans trying to push the Zoro=Sanji BS down people with such idiotic threads such as this.
Most of the time Sanji fans come up with such sneaky tactics to further their agenda. Sadly it has worked.
How many times in this thread so far people mentioned how Sanji/Zoro worked together and mentioned their moments but completely ignored the amount of Luffy/Zoro moments of working together throughout the series. Not even including Wano Luffy/Zoro moments are still far to many especially when it comes to Rivalry and Strength based moments or even combo attacks.
Luffy/Zoro have combined named attacks. I can go down the list but there was such a thread made before so you guys can refer to it.
https://worstgen.alwaysdata.net/forum/threads/luffy-zoro-parallels-all-throughout-one-piece.11015/
The point is I don't agree with many things that Seth said in this thread but he has a point. This misinformation by Sanji fans to push their false agenda has worked in the past and is still working. Hence you have this large following believing in this idiocracy. The Zoro/Sanji Rival has been pushed down people so much that its become a norm at most major OP Forums and thinking otherwise gets you banned.
There is a Zoro/Sanji Rivalry but mostly its gags and few moments of teamwork, and very few moments of portrayl but for Sanji case the portrayl even then is lower compared to Zoro.
Where as the Luffy/Zoro Rivalry are Far more and too many to list. Most people ignore it and only see the Sanji/Zoro moments because user like OP having been pushing this false agenda since the beginning.