Horrible writing advice...
Heroes wear white. They ride on high white horses and have shiny plot armor. They are, of course, interesting because who wants to read about a bum, right? Heroes should be flawless role models because seeing them overcome their petty human experience is just plain boring.
Villains wear black. Their horses don't really like them. They don't get shiny plot armor because the writers guild demands it! They aren't very interesting because they're just plain old e
