My top choice would be Len Bias because the Celtics might have gone undefeated with him (or close to it).
I used to play with a couple of guys every afternoon who turned into NBA all-stars. I used to play pickup with Byron Scott and Lafeyette "Fats" Lever. If I remember correctly, Byron got hurt his freshman year, then they had a great team of Scott, Lever, Lister, Slammin' Sam Williams, and Johnny Nash. That team was fun to watch.
I used to play with a couple of guys every afternoon who turned into NBA all-stars. I used to play pickup with Byron Scott and Lafeyette "Fats" Lever. If I remember correctly, Byron got hurt his freshman year, then they had a great team of Scott, Lever, Lister, Slammin' Sam Williams, and Johnny Nash. That team was fun to watch.