I'll say what I've said before: Writers and players/coaches each have their typical issues, and one isn't necessarily better than the other depending on the award, but for an award based around defense I'd definitely give it to the writers. What you absolutely don't want for an award that requires 1) resistance to voting by reputation and 2) understanding of cutting edge stats are players/coaches because that's precisely what's wrong with them.
I'll also highlight the grand finale of coaches voting:
POSITION PLAYER, TEAM 1ST 2ND POINTS
Forward LeBron James, Miami 25 2 52
Forward Serge Ibaka, Oklahoma City 17 12 46
Center Tyson Chandler, New York 9 6 24
Center Joakim Noah, Chicago 8 8 24
Guard Tony Allen, Memphis 25 3 53
Guard Chris Paul, L.A. Clippers 15 7 37
2012-13 NBA ALL-DEFENSIVE SECOND TEAM
POSITION PLAYER, TEAM 1ST 2ND POINTS
Forward Tim Duncan, San Antonio 3 14 20
Forward Paul George, Indiana 7 13 27
Center Marc Gasol, Memphis 5 2 12
Guard Avery Bradley, Boston 10 5 25
Guard Mike Conley, Memphis 4 11 19
Other players receiving votes, with point totals (First Team votes in parentheses):
Andre Iguodala, Denver, 16 (2); Larry Sanders, Milwaukee, 16 (4); Thabo Sefolosha, Oklahoma City, 15 (2); Luol Deng, Chicago, 11 (1); Dwight Howard, L.A. Lakers, 9 (3); Kobe Bryant, L.A. Lakers (6 (1); Roy Hibbert, Indiana, 6 (2); Kenneth Faried, Denver, 4 (1); Russell Westbrook, Oklahoma City, 4 (1); Shane Battier, Miami, 2; Nicolas Batum, Portland, 2 (1); Corey Brewer, Denver, 2; George Hill, Indiana, 2; Mike James, Dallas, 2 (1); Kawhi Leonard, San Antonio, 2, (1); Tony Parker, San Antonio, 2 (1); Dwyane Wade, Miami, 2; Metta World Peace, L.A. Lakers, 2 (1); Eric Bledsoe, L.A. Clippers, 1; Kevin Durant, Oklahoma City, 1; Jrue Holiday, Philadelphia, 1; Andrei Kirilenko, Minnesota, 1; Iman Shumpert, New York, 1; David West, Indiana, 1.
Note that that's Marc Gasol, the DPOY, get named to the 2nd team while being the centers with the 4th most votes behind Chandler, Noah, and Sanders. They made a choice to purposefully miscategorize Sanders in addition to the ever-so convenient tie on the first so as not to have the DPOY miss out on All-D accolades altogether when quite clearly the coaches were saying: Marc Gasol didn't deserve anything like DPOY consideration if they were saying anything at all.
Of course if the coaches had been willing to come out and passionately talk about what a joke it was that Gasol won DPOY that would be potentially problematic, but would at least make it a debate. Instead the apparent coach's opinion got buried and coaches gave up the award the following year. To me it was a really clear sign that someone in charge simply recognized that the voters were not taking their duties seriously.
Re: Jordan specifically. I think it's important to remember that Jordan is precisely the type of player that would be a lock if the coach's were voting. I'd think higher of the writers if they truly went a different direction, but the reality is that both groups would have been duped, and the reason is Doc Rivers, Doc Rivers, Doc Rivers. Rivers encouraged Jordan to take on a role that focused on hoarding individual stats rather than truly focusing on defense, and then he proceeded to go harder for Jordan's DPOY candidacy that you almost ever see anyone do. People should have seen through it and thought less of Rivers for it right away, instead that will probably come this off-season when people overreact to the Clippers' loss.