With the help of message board members beginning in 2014, we—the students and professors of the Know Rivalry Project—began answering this question and others related to rivalry in the MLB. Please help us update and expand our results to ensure that the Chicago Cubs are included by taking 9 minutes to complete our newest survey:
Our previous results have been featured in numerous sports media outlets, as well as the Wall Street Journal and New York Times. You can view those results, links to media coverage, and learn more about us at our KnowRivalry.com website BUT we'd prefer you didn't until you completed the survey via the link above... we don't want to influence your opinions provided in the survey.
We use the Qualtrics online survey software for data collection. This academic research has been approved by two US universities' Institutional Review Boards (IRB) and it poses no risks to respondents. You'll find more information on the disclosure agreement that is required to start the survey. Thank you for helping us to include the Chicago Cubs by participating and please feel free to share this with any other fans that may also help.
Jonah, Student Researcher, Northern Kentucky University Dr. Joe Cobbs, Northern Kentucky University Dr. David Tyler, University of Massachusetts—Amherst