Superman/Captain America Hybrids
In addition to all the many parodies of Superman and Captain America that exist throughout fiction, there are also a great many characters who happen to be a mix of both. Such characters are often super patriotic, government aligned, and the leader of their world's resident premiere superhero team (which is itself usually a parody of the Justice League and/or Avengers). Some are villains and frauds, but most are on the level.
Personally, I think most of them could stand to get better costumes.