He was giving examples of games with depth, not particular genre games he enjoyed. You can find games with more depth than this one in just about any genre.
He is being very defensive about the genres he likes, whereas I don't care. I'm not judging him based on that, but to list Infinity Blade along with Quake and Unreal shows he has a dislike for FPS. Again, his choice, but don't make out like it's a choice of depth versus graphics, because it's not.
It's about different genres.