I went to HS with Ralph Sampson, so I saw him many, many times. The first time was when he was in 5th grade. He towered over everyone then. He was on back-to-back State Championship teams his junior and senior years. Junior year, he was very good but a 6'8" guy from R.E. Lee High (Mike Madden - he played at UNC) was able to push him around some. By senior year, Ralph was totally dominant. At UVA he was a 3x POY. His knees gave out in the pros and he never was able to dominate the same way he had before.
I always was more worried about Worthy than Jordan during my Wake years.