Top 50 First Base Seasons in Giants History

Catchers were here.

Through 2019.  Ranked by WAR (baseball-reference+Clay Davenport, the best WAR number that exists).

1. 1989 Will Clark 9.05
2. 1885 Roger Connor 9
3. 1888 Roger Connor 8.4
4. 1930 Bill Terry 7.9
5. 1969 Willie McCovey 7.75
6. 1886 Roger Connor 7.5
7. 2010 Aubrey Huff 7.4
8. 1988 Will Clark 7.4
9. 1932 Bill Terry 7.25
10. 1948 Johnny Mize 7.15
11. 1970 Willie McCovey 7.1
12. 1966 Willie McCovey 7.1
13. 1891 Roger Connor 6.85
14. 1942 Johnny Mize 6.8
15. 1968 Willie McCovey 6.6
16. 1947 Johnny Mize 6.55
17. 1946 Johnny Mize 6.4
18. 1963 Orlando Cepeda 6.15
19. 1931 Bill Terry 6.05
20. 1991 Will Clark 5.95
21. 1889 Roger Connor 5.9

22. 1887 Roger Connor 5.85

23. 1965 Willie McCovey 5.4

24. 1967 Willie McCovey 5.35

25. 1924 High Pockets Kelly 5.25

26. 1893 Roger Connor 5.1

27. 1883 Roger Connor 5.05

28. 1983 Darrell Evans 5
29. 1927 Bill Terry 5
30. 1905 Dan McGann 4.9
31. 2016 Brandon Belt 4.85

32. 1992 Will Clark 4.8

33. 2013 Brandon Belt 4.75

34. 1959 Orlando Cepeda 4.65
35. 1987 Will Clark 4.6
36. 1934 Bill Terry 4.55

37. 1935 Bill Terry 4.5

38. 1894 Jack Doyle 4.5
39. 1929 Bill Terry 4.4

40. 1964 Orlando Cepeda 4.3

41. 1962 Orlando Cepeda 4.3

42. 1944 Phil Weintraub 4.3
43. 1922 High Pockets Kelly 4.25

44. 2015 Brandon Belt 4.2

45. 1892 Buck Ewing 4.15

46. 1898 Bill Joyce 3.95

47. 1904 Dan McGann 3.85

48. 1973 Willie McCovey 3.75
49. 1956 Bill White 3.75
50. 1987 Mike Aldrete 3.7
   

And the worst first base season in Giants history...1901 John Ganzel -3.65