My WAR calculation is a combination of Baseball-reference and Clay Davenport; I believe it to be the "best" WAR number available for historical comparison. 8 WAR is an MVP quality season. The record is pythagorean adjusted for 162 games.
2013 – 74-88
C Buster Posey 5.05
1B Brandon Belt 4.75
2B Marco Scutaro 2.15
SS Brandon Crawford 1.65
3B Pablo Sandoval 1.85
LF Gregor Blanco 1.75
CF Angel Pagan .95
RF Hunter Pence 5.35
LF Andres Torres .15
SS Joaquin Arias .3
2B Tony Abreu .15
C Hector Sanchez .2
2B Nick Noonan -.55
SP Madison Bumgarner 4.9
SP Tim Lincecum -.65
SP Matt Cain .75
SP Ryan Vogelsong -2.2
SP Barry Zito -3.25
SP Chad Gaudin 1.5
RP Sergio Romo 2.55
RP Santiago Casilla 1.95
RP Javier Lopez 1.6
RP Mike Kickham -2.1-Pretty terrible, a 74 win pythag the year after the Series. Lincecum throws a no hitter but has his second straight sub replacement season.