Giannis could lock this thing up if he continues on the path he is on. He needs championships, more MVP's and a long career with big numbers.

Karl Malone also has 2 MVP's and 15 seasons on All-NBA teams. The longevity is in Malone's favour, and the fact that he scored points his whole career (hence #2 all time). Duncan obviously has championships (and championship MVP's) in his favour (as well as 2 MVP's)... winning 5 rings may put Duncan over Malone, but did not put up the numbers Malone did (across his career).

If there was no Michael Jordan, or a time machine to move Malone into a post Jordan NBA... there is no telling what Malone would have done.