This is my 2nd vote for picks #7 and #8 (I think it still counts) but #9 is new and not in original order.
#7 - Mitchell
#8 - Markannen
#9 - Ayton (he jumped JJJ)
Next 3 up:
10) Jaren Jackson Jr
As a last point on Booker, he's top 14 in ppg and apg at age 22. This year, the 5 guys top 15 in points/assists are:
Lebron (9th, 4th) - entering his mid-30s, he's a top 3 player of all time.
Harden (1st, 8th) - turning 30, likely the winner of the last 2 MVPs, with 4 top 3 finishes the past 5 years.
Irving (15th, 11th) - age 27 by playoffs, top 12 player, All-NBA 2nd team caliber G.
Lillard (10th, 14th) - age 28, top 12 player, All-NBA 2nd team caliber G.
Booker (14th, 12th) - age 22, will still be 22 at the start of next year.
Booker is 4.5+ years younger than the 2nd youngest. None of these guys played D at 22 and no one besides Lebron (top 3 all time) won at 22, except maybe Harden off the bench (not comparable to Booker's load). He's defensible at #6 because what he gives you is historically rare, and you hope he can work on his flaws, which are certainly real.