I do have some concerns about Fultz's personality. He seems like a nice kid, is obviously very talented, and all reports indicate he's a very hard worker...but every time I see an interview with him he just comes across as very self-conscious and not very sure of himself.
Often his words tell a story of confidence, but his body language and the way he says them seems to tell another story. He comes across to me as the type of player who might start to doubt himself if he is struggling, and might need the constant reinforcement of the stronger and confident emotional leaders of his team.
I do wish him well as I think he is a phenomenal talent, I just hope he doesn't end up being held back by excessive niceness and / or a lack of confidence (e.g. Olynyk, Jeff Green). Also will he be able to handle the up/down roller-coaster ride that is the 76ers?
From a pure personality standpoint I actually really like Tatum and Ball. Both seem like they have a lot of confidence in themselves and their ability, but still grounded enough that they will listen to their coaches / veteran teammates and respect their opponents.
Jackson I think is too far on the opposite set of the spectrum. He seems full of himself to a fault, and seems to believe he is god's gift to basketball. He's constantly talking himself up and I struggle to find any interviews of him where he isn't flashing that cheesy, egotistical grin. I see him as the type who will underestimate his opponents, and I could see him getting a rude awakening once he eventually steps on to an NBA floor and faces up against actual NBA players. His personality reminds me a little of Rajon Rondo, except that Rondo had the basketball IQ to back it up - and Jackson IMHO does not.