Doncic is, to me, a SF version of Al Horford. Super solid. When surrounded by elite guys, contributes tremendously to winning. When left to fend for himself, is very average. That's what I expect from Doncic. On a decent team, he'll elevate them to pretty good. On a really good team, he'll elevate them to elite. On a bad team, he'll be pretty mediocre. If he lands in say MEM, he'll look pretty good for them because they have 2 all-star(ish) players. On ATL, he'll be bad due to new system, young non-winning players, etc.
Doncic is the white Evan Turner. At best, he's Hedo Turkoglu.
I feel bad for CHA. Just don't draft well. Now they have Kupchak who's literally done nothing good without having Jerry West in the building. I feel your pain.