I am evenly split on the Frenchman and Kalkbrenner.
Both look like they have the ability to gain more muscle. Kalk looks a bit stronger now, but slower.
Frenchy is a bit quicker, has a nastier edge, and has a better low post game.
But Kalk's outside shot is solid and smooth. He needs to be wide open, but honestly that's the ONLY time he should be shooting a three anyway.
Kalk might be the better defender at the moment, but both look to be equivalent.
Fleming looks amazing in highlights, but if he struggles with the easy parts of the game (his weakness is literally "making the easy pass") he might take forever to develop.