We don't have the same definition of the word "brilliant".
Being born with freak athleticism and (probably) taking pills to be sure to dominate in nba while disrespecting organisations, players, is not what I will call "brilliant".
To me "brilliant" in sport are guys like Duncan. A humble person with big heart. Great fighting spirit. Establish a father/son relationship with Pop and look like a big brother to his teammates.
KG who devoted his career to a mediocre team, to finally make a 2nd home in Boston and never change his mentality. Fighting with his heart and embrace everything that is given to him.
Pierce that fight his demons many years to the point to be bully by the fans. Get stabbed near to death and come back stronger to end up one of the greatest Celtics.
I can go on like that with many players.
Respect, heart, fighting spirit are what I call brilliant.
Lebron has Ego, that's it. He's a joke and a whinny baby that doesn't want to grow up.