Re: Who is the Reds biggest rival?
The variety of answers that have been given in this thread provide the primary reason why realignment should never have happened. The Reds-Dodgers rivalry that I grew up living, breathing, eating, and sleeping for was killed in 1994. Ask any Reds or Dodgers fan from the early 70s until the early 90s who their team's rival was, and they'd say the other team. That was fun. That was baseball to me.
Help stamp out, eliminate, and do away with redundancy.