What kind of game are we talking about? Bungie is best at shooters and action games. Blizzard is the best at RPG (though Overwatch is a good “hero shooter). Digital Extremes is the best at blending action game and RPG. Bethesda is good at storytelling but their game play is dated and terrible. Once you start talking about other kinds of game, then other devs step up. Ubisoft is still the best at open-world games, but Guerilla Game’s Horizon: Zero Dawn is equal to anything Ubisoft has done.