Looking at stats from this past season, Bunting and Matthews seemed to perform much better with Nylander as their winger rather than Marner:
2022/2023
Bunting Matthews Nylander
Mins 383 goals 30 ga 10
Gf per/60: 4.69
Gf per/60: 1.56
Bunting Matthews Marner
Mins 282 goals 16 ga 10
Gf per/60: 3.14
Gf per/60: 2.12
Interesting, as when you look at it, the xG% favours the Marner line.. but only slightly. You'd have to dig deeper into that, to see why the variance... was it poorer shooting by Matthews or Bunting, or was it due to better shooting of Nylander vs. Marner?
Also, BMM had an expected goals against of 2.48, while BMN had a much poorer xGA of 3.08/60... but the actual results were the opposite... BMN actual were 1.56 to BMM of 2.12.... Was the xGA variance of 3.08 vs. actual 1.56 per 60 attributable to something BMN did on the ice, or was it just luck that the goalie stopped more chances with them on the ice?
I think before declaring one better than the other, you'd have to answer the why's here... and that something we don't have access to.
-----------------------------
Noting though, it doesn't matter whether you look at xGA/xGF, or GA/GF, results for Bunting - Tavares - Marner, or Kerfoot - Tavares - Marner, favour quite convincingly over Bunting - Tavares - Nylander or Kerfoot - Tavares - Nylander
Even if you go with the xG differential, instead of actual with Matthews... the better NET results are having Nylander with Matthews, and Marner with Tavares...