I was reading an article in the local Charlotte newspaper about the best MLB player in each franchise's history.
Franchise ---- Best Player
Angels - Tim Salmon OF (franchise career leader in HRs (290)
Astros - Jeff Bagwell 1B
Athletics - Lefty Grove P
Blue Jays - Carlos Delgado 1B
Braves - Hank Aaron (All time MLB HR leader)
Brewers - Robin Yount SS/CF (.285 lifetime hitter with 3,142 hits)
Cardinals - Stan Musial OF/1B (7 batting crowns, 20 All-Star selections, .331 lifetime avg)
Cubs - Ernie Banks SS (2 time MVP)
Devil Rays - Carl Crawford OF (not much to chose from here)
Diamondbacks - Randy Johnson P (in 6 seasons team beat 2.65 ERA)
Dodgers - Sandy Koufax P
Expos/Nationals - Vladimir Guerrero OF
Giants - Willie Mays OF (660 HRs without performance enhancing drugs)
Indians - Bob Feller P (lead MLB in strikeouts from 1939 to 1948 minus 4 WWII years)
Mariners - Ken Griffy Jr. OF
will continue this list later