7. Mike Piazza

Mike Piazza arrived in Queens in 1998 following a whirlwind week that saw him traded twice in eight days, first from the Dodgers to the Marlins, and then finally to the Mets. While he had already established himself as a superstar in Los Angeles, his arrival in New York fundamentally shifted the trajectory of the franchise, giving them a Hall of Fame centerpiece and a powerhouse offensive engine they hadn't seen since the 1980s

In 1999, during his first full season with the club, Piazza delivered an incredible performance, smashing 40 home runs and driving in 124 runs while maintaining a .303 batting average. His stellar play helped lead the Mets to their first postseason appearance in eleven years, providing clutch moments that allowed the "Amazin's" to secure the National League Wild Card. This season truly showed that he was a top-tier run producer capable of carrying an entire lineup on his back, demonstrating that he could excel even under the intense pressure of the New York media spotlight.

His next season (2000) was even better.  He finished the year with a 1.012 OPS, 38 home runs, and 113 RBIs, finishing third in the National League MVP voting. He spearheaded the Mets' charge to the National League Pennant, famously helping the team navigate the "Subway Series" against the Yankees. During this peak, he was a giant at the plate whose presence alone forced opposing managers to alter their entire pitching strategy, eventually leading to his third Silver Slugger Award in a Mets uniform.

Beyond the box score, his residency reached a historic emotional plateau on September 21, 2001. In the first sporting event held in New York City after the 9/11 attacks, Piazza hit a go-ahead, two-run home run in the eighth inning that lifted the spirits of an entire city and country. 

After eight years as the face of the franchise, his tenure ended at the end of the 2005 season, when his seven-year contract expired, and the organization opted to move in a younger direction under new leadership. His final game at Shea Stadium was an emotional farewell, capped by an eight-minute standing ovation from the Flushing faithful.  Piazza departed with 1,028 hits, 220 home runs, and a .542 slugging percentage for the Mets.

After his playing career ended, he proved his heart belonged in Flushing by entering the National Baseball Hall of Fame in 2016 as a Met rather than as a Dodger. The organization retired his No. 31 that same year.