In his prime DROB was always the fastest on the team. He would frequently get steals by catching up to guards in transition. As far as a combination of size and athleticism probably only LeBron compares. Unfortunately, it took a while to figure out how to use it. He was too thin in the trunk and legs to be a great post player (he had lIke a 28 inch waist). John lucas was the one who pulled in out of the post so he could use his height and speed. Pop utilized even his diminished ability as a help defender.
Was so happy that he got two rings after his prime was underutilized and under supprted.