I think Wander Franco will not be unseated so long as he is in the minors and with good reason, but Robert to me is a clear cut #2. But of the arguments, I'm okay with the tossup aspect of Luis Robert v. Jo Adell. Adell has been probably the closest competitor in performance, and has an age factor. That said, I think Robert has an edge in baserunning and defense, but I can't say for sure having not seen Adell, but it's been an important part of his game.
Now BA has him 3rd currently, MLB Pipeline 5. Fangraphs has not moved him from 20s, but, like at some point you gotta move Royce Lewis down right?