I agree. Back when Byrne wrote/drew Hulk he went up against Wonder Man and the other Avengers. He was plenty enraged and Simon couldn't even slow him down.
That's what i figured, I just never realized how strong wonderman was before this thread. He always reminds me of a tool in his lame costume. Hopefully he goes back to the green one.
I know Wonderman is technically stronger than Grimm, but I'd bet money on the Thing to win. If you go by the old Marvel Two in One Annual where Champion first appears, Simon does okay, but it's the Thing that goes the distance.