The Giants are the worst club in baseball. #26 is quite generous. They have good pitching, but there will be Triple-A squads with better offenses this season. At least teams like the Royals, Nationals, Marlins and Orioles have some fine everyday position players to build around.
Looking at that list, I think every team in the top 22 has a shot (with the exception of the Rays with their tough division) at a World Series title this year. 23-30 are the ones who are toast at the start of spring training.