they don't have as many "highlight" plays as perimeter players plus in a close game more often than not its going to be a perimeter player taking that clutch shot so they get a lot more opportunities at game winners and signature moments. Shaq was exciting to watch because he had a freakish combo of size, strength, agility and skill, Dream has a lot of "highlight" moments because he had ridiculous footwork and dexterity for a big man, Wilt got a lot of notoriety from the sheer dominance of his numbers. Then you look at a guy like Kareem who is kind of similar to Duncan in that he wasn't always that exciting particularly later in his career but when you look at the totality of his body of work and realize he belongs right there in the GOAT convo with MJ and Wilt even though he's often overlooked. Sometimes Russell is even put ahead of him which is comical.

Though we all had some issues with this chart it does show a lot...http://a.espncdn.com/magazine/1224NBAHOB.pdf