I'd say the same for Kid as you said for Sanji though, he had no real way to hurt her with brute force anyway but every time Law hit an internal attack his external ones just worked. Figure best case scenario same applies and they still lose

Zoro & Sanji might arguably have much better chemistry than Law & Kid. They can definitely do some serious damage on her & even they can take some damage themselves. This is honestly a tough one I agree with you on that, but I believe they got the speed, attack potency & chemistry to get it done…

Like let's say they do manage to crack her ribcage open, oops it's healed. Let's say they cut an arm off, oops it's alive and re attached. Like they'd last longer than Kid and Law by alot but they'd lose.

The thing is, Kid and Law were far from defeating Big Mom, and they were just able to beat her because of the fall and the bombs, and not letting her communicate with her homies, so even if Zoro and Sanji>Kid and Law, that doesn't mean Zoro and Sanji>Big Mom

Exactly, they'd do some damage but nothing she can't fix, and Zoro and Sanji last long but they can't land a blow to actually kill. I agree they know how to work together but that alone won't help here

Big Mom's biggest up against Zoro&Sanji is her broken regen capabilities. I can see Zoro and Sanji bypassing her def and durability with CoC coating and Ifrit Jambe, but then what ? Instant regen.

Here's the thing, do you think Big Mom will spam her regen, knowing that it would reduce her lifespan?

Eventually she'll run out of life span so the instant regen thing is flawed. I go BM, she was defeated by law and Kidd but not beaten.

I want to ask, who has higher attack potency. Kid&Law or Zoro&Sanji ? Depending on that Zoro and Sanji just might have a chance.

Zoro and Sanji got more attack potency but Law has broken af hax

Kid and Law defeated BM in a specific way, which they would not be able to do again. BG wins this mid-high diff, since Zoro and Sanji ain't just fodder. No chance of victory for the two tho.