I had a longer post about showing athleticism in game is more important the combine measurements, but decided to stick with, hmmm....
I think I need to go back to the film and watch for it a little more. I do remember a couple of impressive plays from Tre dunking.
If I had to rank the indicators, I'd go:
1) Statistical indicators (doing the things that size/athleticism are supposed to do)
2) Film and how they "look"
3) Testing numbers