The most recent he man could fare well against Supes, and I think that a reasonable person would view Superman as being the DC version of the ulk, and so superior in brute strenght to both Thor and Herc, as its just the way he is!
His top end would be about same as a raging Hulk....
I think there really isn't an analog to the Hulk at DC. Where Capt marvel has been portrayed as his true equal since pre crisis and other Kryptonians and Daxamites pop up occasionally, I would say Thor and Cap are deconstructions of Superman. I'd say Superman is like an amalgamation of the two, but that isn't fair to the original.