These are best individual seasons, not best careers - and the pool consists of players on the all time teams for each franchise. One season per player.
I then decided that each player could only be on East or West, but not both - I then added 5 supplementary names as a practice squad, with the goal of having 1 rep from each team - and I almost made it (Charlotte, man. Charlotte).
Starters
C Kareem Abdul Jabbar 1971, Bucks
PF LeBron James 2009, Cavs
SF Larry Bird 1986, Celtics
PG Walt Frazier 1972, Knicks
SG Michael Jordan 1991, Bulls
Reserves
C Bill Russell 1965, Celtics
C Moses Malone 1983, Sixers
F Julius Erving 1976, Nets
F Charles Barkley 1990, Sixers
F Giannis Antetokounmpo 2019, Bucks
F Scottie Pippen 1992, Bulls
G Dwyane Wade 2006, Heat
G Ray Allen 2001, Bucks
G Chauncey Billups 2006, Pistons
G Allen Iverson 2001, Sixers
Practice Squad
C Dwight Howard 2009, Magic
F Elvin Hayes 1975, Bullets
F Vince Carter 2001, Raptors
G Mookie Blaylock 1997, Hawks
G Reggie Miller 1994, Pacers