And you can't forget Senators-Browns either

It's incredible that the mainstream media still pimps Red Sox-Yankees as "The Most Bitter Rivalry in Sports." Hell, the Red Sox brawl with the Rays every fucking year; I guarantee they dislike Tampa Bay way more than the Yankees. Yeah, Boston-New York games tend to be much better-played and more competitive than regular games, but does that mean that the two teams legitimately hate each other like everyone tries to argue? No. It's a rivalry, but it's definitely not the most bitter rivalry in sports (come on, any college rivalry, especially Duke-UNC and USC-Notre Dame, is much more bitter than any professional rivalry). It's not even the most bitter rivalry in the MLB; I would argue that Phillies-Mets has easily surpassed it. They're always trash-talking each other, they always finish 1-2 in the East, and their fans have just as much hate for each other as Red Sox and Yankee fans do. I'll probably watch some of the upcoming Boston-Yankee series, but I'm going to plan to watch as much of the first Phillie-Met series as I can. Take that, ESPN!