The best stat for this type of comparison is 5v5 GF/60 and GA/60 with a large sample. It allows for uneven ice time due to injuries but requires context. In this case we only have two top right wingers and two top centers so it a reasonable comparison but not perfect.
Last 3 full seasons 5v5:
[TABLE=collapse]
[TR]
[TD][/TD]
[TD][/TD]
[TD]GP[/TD]
[TD]TOI[/TD]
[TD]GF[/TD]
[TD]GA[/TD]
[TD]+/-[/TD]
[TD]GF/60[/TD]
[TD]GA/60[/TD]
[TD]GF%[/TD]
[/TR]
[TR]
[TD]Auston Matthews[/TD]
[TD]Mitchell Marner[/TD]
[TD]
205
[/TD]
[TD]
1808
[/TD]
[TD]
120
[/TD]
[TD]
74
[/TD]
[TD]
46
[/TD]
[TD]
3.98
[/TD]
[TD]
2.46
[/TD]
[TD]
61.86
[/TD]
[/TR]
[TR]
[TD]John Tavares[/TD]
[TD]Mitchell Marner[/TD]
[TD]
215
[/TD]
[TD]
889
[/TD]
[TD]
45
[/TD]
[TD]
29
[/TD]
[TD]
16
[/TD]
[TD]
3.04
[/TD]
[TD]
1.96
[/TD]
[TD]
60.81
[/TD]
[/TR]
[TR]
[TD]Auston Matthews[/TD]
[TD]William Nylander[/TD]
[TD]
227
[/TD]
[TD]
829
[/TD]
[TD]
50
[/TD]
[TD]
33
[/TD]
[TD]
17
[/TD]
[TD]
3.62
[/TD]
[TD]
2.39
[/TD]
[TD]
60.24
[/TD]
[/TR]
[TR]
[TD]John Tavares[/TD]
[TD]William Nylander[/TD]
[TD]
237
[/TD]
[TD]
1559
[/TD]
[TD]
72
[/TD]
[TD]
83
[/TD]
[TD]
-11
[/TD]
[TD]
2.77
[/TD]
[TD]
3.19
[/TD]
[TD]
46.45
[/TD]
[/TR]
[/TABLE]
Matthews and Marner are superstars.
Marner with JT is as good as Nylander with Matthews.
Nylander with JT is a disaster.