I would take Zion over RJ right now, easy. He's just that much better, as injury prone as he is. Just like I'd take Anthony Davis or Kawhi Leonard over less injury prone guys from their classes. Barrett is a nice player. Zion is a stud.
(Note: it's weird he sat out and if it turns out to be a psychological issue a la Simmons, his value will evaporate. I'm assuming it's physical at this point.)
Back to the thread, I'd been assumingthat there was no way both Clingan and Sanogo would return, so when Don said he was coming back I figured out it was a done deal with Adama.