no way thor herc or juggy could take supes.....superman would only lose to Thor because of his magical hammer...without it....hes screwed...Hercules the same as Thor....and Juggernaut may have superior duribility....but superman has strength...speed...reaction time...and so superman will atleast stalemate Juggernaut....
In a slugfest or h2h?
He loses the majority to guys who do that kind of figthing all the time.
Thor even without Mjolnir.
Savage Hulk.
Gladiator.
Immortal Heracles even without the mace.
Namor if its underwater.
Classic Juggernaut.
Wonder Woman.
Captain marvel.
And that is not counting guys that are above the ones listed.
Fact is, Superman is more consistantly drawn being in higher caliber of many of the important aspects of a physical fight, being in strength, durability, speed, flight, skill, and experience as far as Earth beings are concerned.
He may not be the absolute top in your opinion in all of these categories, but it's undoubted that he's in the highest tier.. and when you add it all up, not many characters could bring this much depth to a physical fight and blow for blow with the Man of Tomorrow.
Pre or Post?
Pre - even if you don't allow him TDP's etc, he'd still whupp most people with his limitless speed, strength and total invulnerability to all physical harm that isn't K, RSR or Magic.
Post - a few people could put up a good fight and/or beat him.
Glads, Thor, CM, Jugs. Hulk wouldn't stand a chance as he'd be outmaneuvered.