Currently Bagley is raw and a lot more athleticism - motor. He still needs to build up his skill level which he could do, but the Bulls are looking for the franchise #1 guy and Doncic already has the unbelievable skill and he's only going to continue building upon that.
Basically is Bagley's athletic profile more transcendent than Doncic skill level?
Is Bagley's skill level a stronger "weakness" than Doncic athleticism?
Is Bagley's fluidity, elite athleticism for a 6'11 Center rarer than Doncic's height/size for a guard?
I'm giving Doncic the edge.
I don't know. However, what I do know is that you can't measure a players "intangibles" vs. one's physical assets. They tried it this year and look what happened? Fultz vs. Tatum. Even Ball with his incredible "intangibles" is struggling (and I'm a Ball fan).
Doncic can't defend quick point guards. That's a major issue. He should be okay defending the 3 though.
The NBA draft is simple. They favor athletic players with height / length / skill. They have the higher upside. That's a fact.
* Doncic is 6'7" with a good shot, cerebral, great intangibles. High basketball IQ.
* Bagley is 6'11" with freak athleticism and length. High basketball IQ.
Add to the fact that Bagley averaged 30ppg / 15rpg against top US programs highlights his dominance. Doncic is also doing very well in Europe against top competition. However, the athletes he will face in the NBA is vastly different than Europe. They are longer, stronger, faster, and more skilled. We've seen how Bagley dominated against future NBA lottery picks. We haven't seen it from Doncic YET. They are both the same age (1 month apart).
Doncic might be great. No one knows. However, there are other players who are 6'7" cerebral and skilled. How many 6'11" athletic freaks with high basketball IQs are around?
How many cerebral 6'7" superstar guards are in the NBA? James Harden (6'4")? He's probably the closest. Steph is cerebral but no one in the world can shoot like him. Kyrie is incredibly quick and cerebral. Is Doncic the next Devin Booker? The next Dragic? Doncic certainly isn't the next Simmons or Greek Freak.
Look at Bagley. He's a 6'11" athletic freak. There not many players that skilled, that long, that athletic, that strong, with high basketball IQ. At this point, it's as simple as scarcity. You don't see talent like Bagley very often.
Furthermore, Bagley will sell tickets. Not many Chicagoans are going to care about a cerebral 6'7" point forward from Slovenia. Ultimately, the NBA is still a business. We're still trying to convince people that Markkanen is really good AND he played at Arizona!
I've been objective with my opinions on these players. I have not fallen in love with any prospect. The second Porter hurt his back, I moved on. I've soured on Bamba and Ayton for now. I wasn't even that high in Bagley recently, until he dominated other lottery picks. I watched a bit of Doncic recently. He's going to be a good NBA player. However, his upside isn't what Bagley's is. Doncic paired with Markkanen will be fun offensively. However, together they'd be a disaster as defensive wings. The Bulls have to shoot for the moon. They need superstars. Doncic might have potential to get there ... but at 6'11 with athleticism and basketball IQ, Bagley is far more likely. The draft is about potential / percentages.