Who was the best baseball team of all time? This timeless question can most effectively be answered through comprehensive analysis of baseball statistics. Over the course of a season, winning teams tend to score more runs while allowing fewer than their opponents. The greater the difference in runs per game, the more a team can be expected to win. Comparing this data for the top five percent of Major League nines from 1901 through 2014, this book argues that runs above league average is the best statistic for ranking teams. The author sorts 220 teams by era, franchise and skills--hitting, fielding, baserunning, pitching--evaluates their strengths and weaknesses and assigns numerical values to each player's skills to demonstrate how they contributed to team performance.