Duncan is also a much more unselfish team oriented player. Some of Kobe's production comes at the expense of his teammates.
If I had to start a franchise right now and my choice between an 18 year old Kobe or Duncan, I'd take Duncan 10 times out of 10.
Duncan has sacrificed his whole career. He's never attempted more than 18 shots per game even at his peak even though he clearly could have demanded 20 shots a night. He's been the foundation of a Spurs team that has been through 3 different iterations without missing a beat. He's been a force defensively and on the boards and allowed TP to ascend. His impact can't be quantified by numbers. He's been a great leader. He's been the key to Pop being able to get other guys to sacrifice and put the team first. Only reason he's not recognized is because he's a lame and plays in SA.
So when Duncan let TP take over the team, he was sacrificing, but when Kobe was letting Shaq be the focal point of the team, he wasn't sacrificing?
You want to say Kobe's more selfish, yet his style of play has led him to five championships and seven Finals appearances.