Take it from someone living in the Philadelphia area, there's a real rivalry between the Phillies and the Mets, but only one side knows about it. (I think, from what I've heard from a former Texan that I know, there's a similar one-sided rivalry between the Eagles and the Cowboys.) I remember a few years ago hearing a Phillies announcer mention all of the times that the Mets and Phillies battled for a pennant, but of course, that's never happened. Even in 1973, the Phillies were the one team that wasn't in that race. The Phils finished second to the Mets in 1986, but by such a wide margin that there was never any kind of race. The two teams were never really contenders in the same season until 2005, and by early September the Mets were in more of a spoiler role. It really could make for a great rivalry. In Philadelphia, I guess it already does. Phillies fans hate the Mets, but Mets fans are mostly indifferent towards the Phillies.