That's a tight one. I'd say Cheetahs by less than 10. They'll be pumped up by their humiliating loss to the Canes, I don't see them losing against the Sunwolves. Hopefully I'll stand corrected.
Quite fancy the Cheetahs for this too with their ability to score points against an ordinary SW defence. But it's in Japan so the SW should have a very reasonable chance here.