The Washington Nationals being beat up by everybody. They could even make a trademark out of it "Nationals: Got Losses?" or even "Nationals: At Least We Draft 1st!" Hey now i would buy shirts with those lines on it!
I mean really i love the Nats they remind me of my own baseball team for one, but another is because they are the team everyone should root for. You may say no way they suck but secretively you want them to succeed and you no it!
Everyone loves an underdog. And truthfully they arn't to bad of a team on paper but paper does not count when your in the NL East. They need pitchers!
One of the things MLB could do is to move one of the beastly-always-playoff-playing (Mets, Phillies) for a AL not so beastly-always-playoff-playing teams. (Orioles, Blue Jays). Man a division with the Yankees, Red Sox, Rays, Mets, and Phillies would bring millions into the MLB! It would be crazy!!
The Nationals probably will never win a World Series(at least not in my lifetime), but they are a underdog team to root for I no i do.