Hercules for me. Adam has yet to show that he is stronger, or a better fighter than Hercules. The battle that he had with Superman over 30 years ago doesn't really apply to today, and not sure if it could really be counted as canon to either character presently. His last or latest appearances certainly place him in the low to mid herald range possibly barely making it into the high herald ball park. Hercs feats are better for now, so I give him the win but it would be a crazy fight. If Adam gets the sword Herc should get his mace, and nemian lion pelt no?