8. Gary Matthews (1972-1976)
Wins Above Replacement: 12.5
Matthews played five seasons with the Giants. Nicknamed “Sarge,” Matthews won Rookie of the Year honors in 1973 in his first full season in San Francisco. That year he hit for a slashline of .300/.367/.444 for an OPS of .812.
Overall, he played 594 career games in left field in San Francisco and had a career slashline with the Giants of .287/.367/.443 for an OPS of .810.