One thing is for sure, this year will not have the great contenders like 2017, with Zelda, Horizon and Mario. So far only God of War is a real contender (be serious, a strongly japanese game like MonHun will not get much awards from western reviewers). RDR2, AC Odyssey (this should release this year, right) and Smash will probably contenders. Neither looks like it will reach the quality of the 2017 games.
God of War is better than any game released last year and DBFZ is a fantastic game. RDR 2 should be better than any game last year as well and Spiderman will be good.
Meta had the games last year 97, God of War at 94. I'm aware people have different tastes, but Meta should partially outweighs this. Going after personal tastes by the way, MonHun and Zelda for me beat clearly and without question God of War, Mario and RDR. So going after my personal tastes MonHun would be contender, but I'm realistic.