Leo Carlsson had 29pts in 55gp (43pt pace) in his rookie season and plays C. Slafkovsky had 10pts in 39gp (21pt pace) in his rookie season and does not play C.
Leo Carlsson has 44pts in 75gp (48pt pace) in his sophomore season and plays C. Slafkovsky had 50pts in 82gp in his sophomore season and does not play C.
Their net +/- after two years, Carlsson -4, Slafkovsky -32.
It's clear which one is the more valuable player playing a more valuable position so far in their young careers. Which was was carried by Suzuki for all his success and which one has to carry the broken down Alex Killorn?
I don't suspect anyone would disagree that Carlsson would be picked ahead of Slafkovsky if they were in the same draft year -- in fact it was often repeated to insulate Slaf from critical comparisons.
Keep your insults tucked in your mouth, it's unbecoming and unnecessary. Stick to talking hockey.