Duncan easily.
Shaq is a merc and has a huge ego the second he feel like he not the number 1 guy he going to bounce
Kobe is going to require you to sacrifice a year or two for his farewell tour which is going to stunt the growth of all your young players. Oh and you have to build very specific teams around him...like you have to have a hall of fame big man to go along with him otherwise you just going to be another run of the mill team losing to the suns in the 1st round.
Duncan
Want to win a chip with an aging all star big on his last legs who can barely play 20 minutes a game...you can
Want to win a chip while your young point guard learns how to be an nba player...you can
Want to win a chip while your young point guard becomes a hall of fame player in his own right and you need to take a back seat offensively...you can
Want to draft a guy at 15 overall that you think has great potential but his offensive game is non existent and you KNOW its going to take years for him to reach the level of being the franchise player...no problem...you will win another chip while you wait for that to happen...
Bonus points for in his last year convincing a moody semi weirdo big man to come replace him who's game is not pretty to look at...BUT...you keep on winning and putting yourself in position to get another chip...
I honestly don't even understand why this is a thread...the lakers literally became one of the worst teams in the nba while Kobe was still playing for them and haven't recovered since...