And then levelling up like Lebron, might take lots of games though, to see him carrying the ball and orchestrating the offense from the outside, but everything is in baby steps for him and the Bucks.
To level with Lebron, Giannis has to prove that he can win championship first, if they will be more successful this season and win in the East and will happen that Bucks and Lakers will face in the finals, then that's the time to prove he can level by defeating the king.
Giannis is still young, he has still a long way to go (If he can't win it all this year). I know the right time comes for him. What he needs the most is strong leadership. He already have almost everything, he's unstoppable and keeps on improving every year. If the Bucks management can't provide him a championship caliber team, then It would be much wiser for him if he switch team that he knows capable of winning the championship, If he wants to win a ring.