Rivalries are a part of life. From the jobs we work in to the teams we pull for, they are everywhere.
The best rivalries bring out the best in each other. Think about comic books. Villains and Superheroes always find a way to give the best showdown.
I think this best described in the following quote:
“The quality of a villain can make or break a comic book, and in that matter make or break a superhero. Bad villains are easily defeated and are boring at best. Good villains push the superhero; they make the reader wonder how the hero is going to succeed.