Zoro's been constantly portrayed as superior to Gear 2nd Luffy since the timeskip, such as the Dragon fight and not being impressed by Luffy until he used Haoshoku Haki, whereas Sanji's Diable Jambe seems to be at best equal to G2 Luffy, if not weaker based on his poor performance in the WCI Arc. If it's just base Zoro, then this could be interesting, though Zoro's Haki should be enough for him to still take this with mid-diff at most. If Zoro can access his best techniques such as Asura, he oneshots like FP Law did.