Simply, no.
http://www.spurstalk.com/forums/showthread.php?t=195296
I am going to use DG(Daniel Green) to not confuse between the name and the color: In case you have not read Timvp's player pairs analysis, "green" points allowed in a box/colmn means teams scored less with that combination of players on the floor. DG is green in points allowed, making every other player on the team better defensively except Blair and Neal.
Leonard is almost all red, with Leonard only making Jackson, Blair and Duncan better defensively.
ON the year, Green improved the defense and Leonard improved the offense, generally. However, Leonard has moments of explosive defensive impact on the floor, with steals, blocks, where Green quietly smothers players. Overall, Green is more consistent.