Nothing against Draymond, who seems clearly to be a new and unique (for now) model of great NBA player, but these types of comparisons can be misleading. Just moving those threshholds changes the players on that list dramatically.You can use Basketball Reference's handy player season finder to find out which players have reached various statistical thresholds.
If you round down Draymond's numbers to 14 pts, 9 reb, 7 ast, 1 blk per game — and don't even worry about the steals and 3fg%— sure enough, he is the only player in NBA history to reach them.
The thing is, they didn't use to keep track of blocks and steals, and obviously there didn't use to be a three-pointer, so by including those numbers you exclude a lot of past greats. If you use just the the basic 14 pts / 9 reb / 7 ast, the complete list is:
Draymond Green (so far)
Wilt Chamberlain (twice)
Oscar Robertson (four times)
Larry Bird (twice)
Magic Johnson (once)
John Havlicek (once)
Grant Hill (once)
Fat Lever (once)
Not bad company for the 35th pick in the 2012 draft.
For example, saying that Magic only did 14-9-7 once kind of misses that he did 14-7-9 (actually 16-7-9) 5 times, 17-6-11 7 times, etc. Larry Bird only did 14-9-7 twice, but both of those were actually 24-9-7, something Green will never approach. Bird had five seasons of 21-10-5, 7 seasons of 20-9-6. Antoine Walker, nobody's Bird, Magic, or even Draymond, had 2 seasons of 22-8-5.