I’d favour Wilder but honestly Primo’s strength, heart, cardio and clinch abuse would make it interesting. Even in spite of his ankle getting shattered in the first, Primo kept on coming and even managed to find considerable success in the later rounds against Baer before he got stopped. I think he would ragdoll Deontay in the clinch and give him a war. One that Wilder will eventually win, but a war nonetheless.