Here's my "Starting Nine," all cards from my collection. Based my choices on combo of player stature and card significance:
Leading off, playing left field...
cobb_09f_PSA_registry.jpg
Batting second, playing second...
jackie49f_PSA.jpg
Batting third in right field...
ruth_33f_PSA.jpg
Hitting cleanup and catching (this card is a Pop 1 with none higher)
gibsonj74f_PSA_registry.jpg
Batting fifth, at first base...
gehrig33f_PSA.jpg
In center field and batting sixth...
dmggio39f_PSA.jpg
At third, hitting seventh...
brooks57f_PSA_registry.jpg
Hitting eighth, playing shortstop...
reese_53f_PSA_registry.jpg
And on the hill, batting ninth...
WaJo_09f_PSA.jpg