If I could jump/run/ball like any of these three I would care less how much I could bench/squat/clean as long as I wasn’t getting hurt.
In Kobe’s case, if you look at his transformation since the beginning of his career, his work in the weight room has had a significant impact on his ability to be the player he is now. With the physical abuse he receives from defenders he needs that extra mass and strength to help get his shots up and fight through contact to get to the basket. I’m not sure what Kobe does for his lower body but I would like to see him work on his explosiveness and get his vertical jump back up a little. Not that Kobe isn’t an explosive player but honestly he doesn’t get up like LeBron does or how MJ did, and he has had to make up for it with superior outside shooting. A lot of it probably has to do with aging and having had knee surgery, but if he could elevate his athleticism any he could stay at the top of the league for almost another decade.