Surely player of the season means who has made the biggest positive impact on our season? On that basis it can only be MW.
Yes, his form like the whole team's has dropped off latterly but it is blatant 'recency bias' to therefore ignore what went before. If it had been the other way around and he'd started slowly then burst into life and was now banging them in like earlier I doubt anybody else would muster more than a handful of votes. It's not like anyone else suddenly started pulling up trees is it? Gibson has been steady throughout .... but other than that?