Eradicator is tough, that's why I put him up against Thor. As for Hercs and Shazam, it's a toss up for me. Shazam has a speed advantage, but all herc has to do is hit him with his mace a once or twice, to KO him. He might be nearly as strong as Superman, but his durability no way near that of Supes. This is classic Herc as well. He has godlike strength and is practically immortal. Wonder Man enraged I think stands a chance against Black Adam. Black Adam has a mytxplk weakness. Trick him into saying the word Shazam, he turns back into Theo. But they don't know each other here, so that won't work.