I mean, sure Gus had a great season, but it was based on points, and an ability to drive xG/CF. It was good, but I do think the points might not have a chance of returning, and he was baaaad defensively.
Looking at RAPM.xGF/60, the 4 defenseman we're talking about (Gus/Gards/Derms/Muzzy) rank as follows (dash for tiers):
1. Gardiner
--
2. Gus
3. Muzzin
--
4. Dermott
Defensively (RAPM.xGA/60) they rank:
1. Gardiner
2. Dermott
3. Muzzin
--
--
4. Gus
View attachment 217151
View attachment 217153
So yeah:
1. Rielly
2. Gardiner
3. Muzzin
4. Gus
5. Dermott
But really all of Rielly/Gards/Muzzin/Gus had top-25 LD seasons.