Rivalries. They make up some of the best moments in sports. They add fire to competition, create diehard fan bases and add more fun to a series.
Interleague rivalries stand apart from those created through division races. Not all teams have an interleague rival. Of those that do, many are natural rivalries, formed as a result of two teams' proximity to the other. Fans choose a side and continue their loyalty year in and year out.
Each rivalry differs from the next, be it a result of history, geography or the two teams' current playoff chances. For those reasons, here is a rank of the interleague matchups.