Thinking about it in a different fashion....overall, one could make a serious argument that Olajuwon was the best ever. Shooting, rebounding, shot-blocking, free-throws, defense....he could do it all like no other. He had the best footwork of any center ever and still holds the blocked-shots record to this day. If he would have played on a better team (Lakers, Celtics, Bulls), he may have won 5 or 6 titles.
I think there is a flaw with that way of thinking though. In reality while it's nice if somebody has all of those features and is good at all those stats each stat isn't equally important too each other in what makes a team win. Some of them are much more important than others.
(Often that same issue comes up in baseball when trying to compare people.)