Joshua easily: Simply too big and skilled for Ortiz. Height and reach. Handspeed, footspeed and distance control. The jab would be key. He doesn't even need his right hand against Ortiz, and he has a much better left hook than Wilder. Also The weight and stamina of Joshua would be a big problem for Ortiz. He has a solid guard and quick step backing away. It will be to hard for Ortiz to pierce that guard and land often and powerful enough.