lol...its also hilarious that you mentioned hype...because Superman is generally hyped far more than Hulk, Wonderwoman, Batman, SSurfer, and even Thor.
Someone who can move at the speed of light, shoot lasers from his eyes at will, use his momentum to push planets out of orbit....can't even deal with the likes of Lex Luthor....or even contain him? right.
Why would he ever struggle with the likes of Mongul or Grundy?...instead of instantaneously pwning them? I'll tell you why...either hes stupid....or all fanboy hype (Hes not nearly as powerful as you make him out to be)