The San Fransisco 49ers have five Super Bowl victories out of five appearances.
They were not always a great team.
As a charter member of the All-American Football Conference, they posted a 38-14-2 record, which isn't too bad, but the Cleveland Browns won the championship every season.
The 49ers and the Browns were the only teams to survive the AAFC, joining the NFL in 1950.
In the 1950's, the 49ers were slightly-above-average, compiling a 63-54-3 record and losing in their only postseason game in 1957 to the Detroit Lions 31-27.
The 1960's weren't as good, as the 49ers went 57-74-7, never making the postseason.
The 1970's started out well, with the 49ers making the playoffs in the first three seasons, each time to be escorted out of the playoffs by the Dallas Cowboys. After that, the next eight seasons were pretty bleak, with the team posting a composite 39-79 record.
Following this was almost two decades of success, including 16 straight seasons of 10 or more victories. From 1981-1998, the team was 207-72, with five Super Bowl victories and a 22-12 postseason record.
In the last 12 seasons, we have seen the team fall from grace, posting a winning record only twice in that time.
What follows is a list that takes into consideration every position player to ever lace up the cleats for the San Fransisco 49ers.
This list was compiled using the "Approximate Value" statistic, as calculated at www.football-reference.com, and explained here: http://www.pro-football-reference.com/blog/?page_id=8061.