11. Washington Nationals
Even though Bryce Harper makes them easy to hate, this one burns deeper. An extra inning playoff game takes years off a person's life, and an 18-inning one probably almost killed any Giants fan who watched all of last October's Postseason affair. Imagine how much Giants fans would hate them if they'd lost that one...
10. San Diego Padres
Everyone loves flashy off-season moves. Well the Padres went out and made almost all of them, landing Matt Kemp, Justin Upton, James Shields, Will Myers, and Derek Norris. Welcome to the top 10, buttholes.
9. Colorado Rockies
They ALWAYS have a hitter every other team wants. They develop accidental 25 home run crushers yearly. They chew up pitching staffs with Coors Field. Plus if you think long and hard about that year you attended the most Giants games in person, you'll realize 60% of them were against a 70-92 Rockies team.
8. New York Mets
First the Mets (THE METS) knock the Giants out in improbable fashion in 2000 after SF led the league in wins. Then, somehow, they snuck Armando Benitez onto the Giants roster. Double groin punch -- say hello to No. 8, Mets.
7. Miami Marlins
Baseball fans remember the two World Series the Marlins bought. Giants fans remember 1997 and 2003 -- early, disappointing playoff exits to Marlins teams that otherwise weren't good.
6. The New York Yankees
Even though the Evil Empire's payroll is largely tied up with over-the-hill players these days, watching them gobble up everyone's best player gets a little old. The only reason to root for the Yankees is when Vallejo-born CC Sabathia is starting. But even then, it's really, really hard to.