Muzzin and Voynov, in that order, lead Kings d in plus-minus/60.
That’s 14th (Muzzin) and 19th (Voynov) in the league, among d.
Voynov and Muzzin are 3rd and 4th among D in behindthenet.com’s pure “rating”, which is a magical algorithm of their various yardsticks — they are behind only Mark Fraser and Victor Hedman.
Among d with more than 15 minutes of icetime per game, it’s Hedman, then Voynov.
Doughty, Scuderi and Martinez are 6th, 8th and 11th (respectively) in the league in QUALCOMP among defensemen with at least five games.
That’s not good, since Martinez is hurt.
Clifford, Doughty, Scuderi, Carter, Williams and Gagne have the lowest QUALTEAM on the Kings, which kind of means they’re on the ice with the weakest teammates (though this metric strikes me as somewhat circular, since Doughty and Scuderi are on the ice together, bringing each other down).
Doughty and Scuderi pretty clearly get just about the toughest matchups in the league, and are expected to do it without an excess of support.
Some posts the robot says are related, but I'll let you be the judge of that: