These are the ones I have a problem with:
Cavaliers - LeBron
I'm not 100% sold LeBron was better defensively than Larry Nance, but it's probably the easiest to let go. LeBron had some tremendous defensive seasons and stretches for the Cavaliers.
Thunder - DJ/Payton/Ibaka/Holmgren/Sikma - going with Payton
I actually think Andre Roberson is the clear OKC/Seattle defensive GOAT. With Nate McMIllan, Ibaka and Collison trailing close behind.
They also got really good seasons of Thabo Sefolosha on the wing. Then, in this new era, Shai, Holmgren and others are yet show exactly how great they are. Maybe the best 30 year defensive stretch for a team in league history.
Suns - Kidd
I have to imagine the Suns had a better defender than that version of Kidd. Maybe Andrew Lang or Kurt Thomas.
Heat - LeBron/Wade/Mourning/Butler/Bam - going with LeBron
It's easily Alonzo Mourning. Peak, prime, otherwise. And then Haslem might beat everyone out for longevity.
Spurs - Duncan/Robinson/Wemby/Kawhi/Bowen - going with Duncan
Robinson clearly peaked the highest defensively. Close but clear over Duncan. But a forgivable gap here.
Bucks - Kareem/Giannis/Moncrief/Pressey/Holiday - going with Giannis
Giannis had a pretty strong, sub-DPOY level stretch there from 2019-2022, but Bucks GOAT? I just doubt this. I think prime Larry Sanders clears him, let alone Kareem. Prime Luc Mbah a Moute is right there too.
Bulls - MJ/Pippen/Rodman/Noah - going with Pippen
Horace Grant needs to at least be mentioned here. Only way Pippen tops him for me is through longevity. Peaks? Not that close IMO.
Clippers - Kawhi/George/Paul - going with Kawhi
Luc Mbah a Moute, CP3 and DAJ all have arguments over Kawhi at different times.
Raptors - Kawhi/Gasol/Ibaka/Anunoby/Lowry - going with Kawhi
There's a lot of competition. Amir Johnson and Jokob Poetl have to be in there. Anunoby has to be removed outright. Along with Ibaka. For the record, I think Danny Green was their best defender in 2019.
Grizzlies - Marc Gasol/Battier/Tony Allen/JJJ/Posey - going with Battier
I think Battier peaked on the Rockets, and even that was below peak Tony Allen. Allen was better than Gasol, and everybody on defense for quite a while there. Flat out anchored them in 2015. Gasol slipped a lot athletically by that time, but his skill increase on offense hid it.
Jazz - Gobert/Eaton/Kirilenko - going with Kirilenko
Very, very competitive. AK47 would be multiple teams DGOAT. But no argument whatsoever over Gobert or Eaton.
Swinging for the fences.