Zoro will have more importance than Sanji in this arc. But he won't have an opponent on a more higher lvl. He never has and he never will. His opponent will be comparable with Sanji's.
In this arc Zoro will have the importance of freeing Wanokuni for the Kozuki clan. He will have his main fight against Kyoushiro ( who in my opinion is YC lvl) and he will slay full Zoan or Hybrid Orochi. Whilst Sanji will defeat Queen.
The whole Zoro vs Kaido thing. Whilst Zoro may recieve enma....."May". In my opinion the Tengu will create him his own green sword so Zoro can start his own legend. Zoro vs Kaido has only been hinted at colourspreads. Zoro has no actual interest in him. Whilst Orochi on the other hand, Orochi has killed Yasu ( perhaps Zoro's relative) and he boiled Oden ( Hiyori's father). Zoro is after Orochi and his men, and has no actual set up with the Beast Pirates.
- When Zoro defeated the Yakuza, they didnt send any BPs after him whilst the sent Pageone for Sanji.
- Sanji defeated Pageone whilst Zoro hasnt defeated anyone prominent in there.
- Zoro defeated Killer who was working for Orochi
- When Zoro fought after Yasu's death, he attacked Orochi and fought Kyoushiro. Whilst Sanji foguht Drake.
You can see a pattern from this of Zoro not fight BPs. You could say Hawkins, but we dont even know what side his on or if his fight with him was even reported.
Zoro may clash with Kaido, since it is his own arc. But I doubt he will land anything on him that will injure him. Kaido is for Luffy not Zoro....and people need to realise this. However since this is Zoro's arc, he has to have near Luffy importance like Sanji got last arc.
Sure Sanji's role last arc wasnt fighting related, but it was as important as Luffy's role...perhaps even more important however he did not fight an opponent anywhere near Luffy's one. Nor did he fight as many as Luffy. And seeing how Luffy centric Wano is. thats what Zoro will get.
Zoro and Sanji are really lucky SHs tbh cause no SHs ever get these importances unless they are damsels ( albeit Sanji was a damsel in the first half of his arc). But those damsels never get to save the day on the lvl of Luffy like these two get to do.
Anyways back to the discussion. RS Sanji low diffs Zoro.