Who is the most underrated franchise in baseball history? The Giants certainly come to mind. Originated in 1883, the Giants started off in New York and then moved to San Francisco in 1958. This franchise has won 8 world championships (5th all time) and 23 pennants (3rd all time). Remember this team won three World Series titles in a five-year span (2010, 2012, & 2014). With team accolades like that, you know they have had some iconic players. That is particularly true in the power department. Four studs who played the majority of their careers with the Giants slugged over 500 homers. Now let’s feel the breeze and look at the all-time leaders in home runs for the Giants franchise.