Funny, I saw both Walton and Kapono play in high school. I was shocked when Walton received a scholarship to Arizona, and I was floored (not in a good way - the Walton's are pretty hated in San Diego) when he made an NBA roster. In my eyes, he's sucked since high school
Kapono had an ankle injury when I saw him play, so I can't be too hard on his high school game.
Walton, though, was terrible. I remember Uni played St. Augustine, and Walton would run an isolation for himself at the top of the key almost every play; he would almost dribble the ball off his foot - while trying to look like a PG - then lower his shoulder into his defender, and the refs would give him the call every time. Horrible, horrible player.