He has not been the best player on the team since the TDL. 34, 88 and 91 have been better.
42 goals trumps 22 goals and 68 assists with 9 games to go. Willie's game is still evolving while Marner is the same soft perimeter playmaking winger that will never win you a playoff series. See Panarin, Huberdeau, and Pettersson.
Marner is too small, too soft, too weak and too afraid to succeed when the big boys show up and play for keeps. Can you see him engaging with Gabrikov like Willie did last night? Seeing Willie battle for pucks, not afraid to take a hit to make a play and going to the dirty areas shows how much of a more all round player he has become (when he wants to be of course).