Giannis is the best ballhandler at his size ever.
Giannis is more athletic than prime LBJ.
Is that too much to say?
I disagree.
The only thing Giannis has over prime Lebron is Length. I'm still not sure he's faster than current Lebron. Don't forget prime Lebron was once used to put the clamps on a prime MVP level Derrick Rose in the play-offs. Maybe the most explosive point-guard in the game at that time. I believe Rose even commented something like it's almost unfair for a guy that size to be able to move at that speed. That's a whole other level of quickness I don't believe Giannis has.
Giannis has significant length, hand size and footwork that is superior to peak LeBron. He also seems to play with a sense of menace that LeBron didn't always have.
His other athletic traits may not have quite matched LeBron, but he's probably the only one that has come into the league since that has come close.
Both guys have super tight handles, the ability to consistently make faster reads of the defense than other players and both share an elite ability to finish in the lane. I think eventually Giannis will become even better than LeBron because the combination of added size and elite footwork give him the potential to go one level higher. Size and great pivoting skills are the most reliable offensive tools in basketball.