Depends on how you define "Valuable" I guess. The difference LeBron makes for the Lakers when he's on the court is just so stark compared to the difference Giannis makes for the Bucks. Looking at their stats, one way to see this is in how many minutes they play...Giannis hasn't played 35 minutes in a game since November, including blowouts, close games, and losses. Not doubting his greatness, it's just that his minutes don't have the same value to the Bucks that LeBron's minutes have to the Lakers. Who expected the Lakers to run away with the #1 seed in the West this year? And as good as AD's been, a closer look suggests it's really all LeBron, who became the best PG (of all time?) basically overnight.