i agree with the supermans op part but the reason the hulk and one punch man are popular is not just porn (eew) for the hulk while hes powerful he doesn't want to use his power for fear of hurting the wrong people, and hes is REALLY stupid in hulk form, for one punch man the whole series is plays his power for laughs and everyone loves to laugh. the reasons to like them go beyond just power and perfect character syndrome (where a character has no (or not enough) interesting flaws) that's why tat problems not seen, how they're written