4. Chief Meyers (1909-1915)
Wins Above Replacement: 21.4
Meyers played seven seasons with the Giants. His finished in the top 10 in the MVP voting for three straight seasons from 1911-1913, finished as high as third in 1912. In 1912, he had his best season, according to WAR, with a slashline of .358/.441/.477 for an OPS .918.
Overall, he played 840 career games at catcher in New York and had a career slashline with the Giants of .301/.376/.390 for an OPS of .766.