As with all sports, the success of a baseball franchise is measured in championships. However, the team that wins the World Series is not always the one with the best win-loss record over the course of the season. Here is a look at the all-time highest franchise winning percentages in Major League Baseball history, through the completion of the 2010 season, including where they rank in World Series titles. #5: Boston Red Sox (.517 - 8,819 Wins - 8,233 Losses - 7 World Series Titles) Founded in 1901, the Boston Red Sox have remained a staple in American League...