...So how in the fuck is Mario Oddesy going to top this then?
A Mario game has no chance at all of these reviews.
This is a special confluence of factors outside of Nintendo's core gameplay genius (which would apply to both Zelda and Mario):
-Zelda series bias: It's a special series for a lot of people out there including myself, many of whom are game reviewers
-Reinventing a much-loved series: This is a massive departure from the norm, which always leads to better reviews of a game in a series if it's done right
-Delivers and perfects modern design trends: People fucking love open world games. This is an open world game, done to a stunning standard.
-Value: Much bigger game than mario ever will be, 100 hours of content.
There's no way even the best mario game could compete with that witches' brew of good score alchemy.