Hard to say. Lebron was more physically gifted but also played in time where you cant touch anyone. Jordan played when guys could still rough you up and get away with it.
That's part of the reason that trying to definitively claim any 1 player is the GOAT is ultimately a fools errand. The game and the way it's played has evolved over time. Kareem, Magic and Bird played in an era that had, imo, the best mix of physical play and finesse.
MJ played in an era that was so physical, it sometimes only loosely resembled basketball. Lebron hasn't had to deal with the physicality of those earlier eras, but the players from those eras, with very few exceptions, were not as skilled as the players today.