I know I'm late to the discussion but I'm going with Kennard, albeit in part just because I think his play gets overlooked.
Grayson, while hitting big shots at the end, had 29 points on 28 shots. Kennard had 20 points on 13 shots.
I think we'll see a lot more highly-efficient nights like this from Kennard next year and very, very few nights where he's cold. I'm really excited to watch him develop over the next couple of years. I would predict he'd average 20+ PPG next year if it wasn't for the talent we have coming in, who will demand shots. Nice problem to have.