Gerardo Perdomo was recognized as the best shortstop for the Arizona Diamondbacks, earning this distinction due to his All-Star selection and WAR performance, despite competition from more established players like Nick Ahmed and Stephen Drew.

Yoenis Cespedes was identified as the Oakland Athletics' top outfielder, celebrated for his impactful seasons before being traded to Boston.

David Ortiz was named the best first baseman for the Boston Red Sox, considering his offensive contributions and occasional fielding.

Elly De La Cruz is the standout shortstop for the Cincinnati Reds, seen as a dynamic talent with significant potential despite current defensive challenges.

Aramis Ramírez was chosen at third base for the Chicago Cubs, based on his OPS+ and WAR during his tenure, with mentions of alternatives like Kris Bryant.

Corey Kluber was recognized as the Cleveland Guardians' top starting pitcher, celebrated for his elite peak and Cy Young awards.

Matt Holliday was selected for the Colorado Rockies' outfield, noted for his multiple All-Star appearances and high WAR during his early years.

Ray Durham was chosen at second base for the Chicago White Sox, recognized for his All-Star seasons and WAR, surpassing other candidates.

Each team's starting nine includes a catcher, four infielders, three outfielders, and a starting pitcher, with specific players highlighted as the top performers in their roles.

Roy Oswalt stands out as the Houston Astros' best pitcher, known for his consistent performance and multiple top-five finishes in Cy Young voting.

Over the past 25 years, the article reviews the best starting nine players for each MLB franchise since 2000, focusing solely on their performance with their respective teams.

Erik Bedard is recognized as the Baltimore Orioles' ace, noted for his sustained frontline performance and comparison to other staff aces like Mike Mussina.

Selections of the best players are based on production, impact, and notable achievements, often accompanied by explanations and alternative options.

Brandon Inge was chosen as the best third baseman for the Detroit Tigers, appreciated for his longevity and defensive skills.

Jason Heyward was selected by the Atlanta Braves as their top outfielder, acknowledging his high prospect status and WAR contributions despite unrealized superstar potential.