You can both make comparisons to other games and also describe your game in other ways. They aren't mutually exclusive.

Tbh, I'd assume that it would be advantageous, at least overall, to compare your game to others. It's not necessarily to claim that both games are on the same level, but can be an acknowledgment of their similarities. It allows fans of those games to find yours more easily and can help provide a clearer picture of what it'd be like to play it.

That being said, there are plenty of bad comparisons out there... but there's shitty marketing/writing/overselling/ect in every industry.