Zod has the better fighting feats in terms of skill and speed (thanks to way better choreography, a way way bigger budget, and Man of Steel being released in 2013 🙂 ), but wouldn't he have to blot out the sun somehow to ultimately defeat NM? Or just manhandle him into a nuclear reactor somewhere?
On the other hand, NM went toe-to-toe with Reeves, besting him in all their encounters except the finale if I recall correctly. Also, his scratch of decay is a key power in this fight.
I'll say it comes down to far better production values vs. hax powers and beating up on Reeves Superman. May the jury of KMC decide from there.