Keep me outside of the kitchen (
@HA001)
Zoro uses "3 sword style" and "9 sword style" technique and Kizaru has shown us that he can create light clones that all own a sword so Zoro is the best match up.
Zoro fighting Kizaru goes beyond that. Zoro has to channel his energy to cut light and that makes him more likely to get black blade in the future. Zoro can't just go and land an attack like "Divine Departure" because the cut is not clean and it will not cut light, it will only cut Kizaru. So, he has to learn how to channel that blade energy to make a clean cut on light.
If you don't believe me yet then let's take a look at Zoro's potential opponents until the end of the story.
- Zoro cut a rock in Dressrosa (Pica)
- Zoro cut fire in Wano (King's flame)
- Zoro may cut light in Egghead (Kizaru)
- Zoro will cut "nothing" / invisible human (Shiryu)
- Zoro will then fight Mihawk
- Zoro will cut diamond (V. Nusjuro) - either before or after Mihawk (but I have it after)
Rock -> Fire -> Light -> Nothing -> Mihawk (best swordsman) -> V. Nusjuro (diamond)