Tatum is better than Porter Jr.
Porter Jr. Is overrated imo.
I don't know about better than Tatum, but I disagree completely about being overrated. He can shoot it from a mile away, and can shoot over almost anyone. He also has that little move where he throws his hip into the defender to create a tiny bit of space, then hits the fallway jumper ala Bird.
He scored like 15 in the 4th to bring his team from behind against Marvin Bagley's team. Bagley made him look bad on D a few times, but Porter made some key stops, including a couple late on Bagley. And Bagley is going to make pretty much anyone who guards him look bad.
IMO, Porter is a better prospect than either Ayton or Bamba. I can't really say about Doncic, they may all be behind him. He certainly is intriguing. Porter's also a Brad Stevens type of forward, whereas Ayton, Bamba, and Bagley will likely be bigs.
The whole order changes if Bagley reclassifies, because he'll be #1 whichever year he comes out, but last I heard, he said he wasn't going to do that.