You and I probably just have a philosophical difference of opinion. In my mind, I see Kaminsky as a guy that showed up to Wisconsin and was a below average athlete with below average skill. He left Wisconsin as the focal point for the offense...a below average athlete with above average skill. You know by his results that he wants to be a great player, and though his athleticism will limit his ceiling you don't question his desire to improve.
WCS on the other hand, came to Kentucky as an above average athlete with below average skill. He never developed into a go-to player and left Kentucky much the same as he came in. While he still has considerable upside and better physical tools, you have to question whether he'll come close to reaching that potential.
Again, philosophical difference...but I pick the lower upside guy who has demonstrated growth and a desire to be better.