About the argument of high-end vs low-end: let's ask ourselves what happens when Flash faces the Antimonitor compared to what happens when he faces a normal Rogue. Similarly, Hulk versus everybody as opposed to Hulk versus Daredevil. Based on what you've read from both sides into account, what would the imagined scenario be if Karate Kid faced off against Hercules in a comic? Remember now, this isn't about just power/skill-set vs power/skill-set. If that were the case, we'd always ignore lower-end feats, ha ha.
If this were to happen in a comic, Hercules, though a fun character, doesn't demand the seriousness of being portrayed at highest ability (unless it's a story in which he boasts about himself, in which case he goes beyond his power-set). On the other hand, Karated Kid, in multiple versions, has signature moments vs the top-elite class.
If these two were to ever meet in comic-context, what would happen? I'd say Hercules would be quite surprised when Karate Kids pulls out telepathicjitsu that he learned from a space octopus.