Honestly, as far as pure graphical fidelity, or rather moments I played where I literally exclaimed "How the hell is this level of detail possible!?" Crysis 3 blows Metro out of the water. There are some textures in Metro that clearly show 4A's limited budget and look like something out of a early-2000s game. Crysis 2 with Maldomod is also far superior to Metro. With that said...I think the world of Metro, the art style, the use (not tech) of lighting all leave Crysis in the dust. When playing Crysis, I was blown away by the technical detail of the world. When playing Metro LL, I was blown away by the world itself. All things considered, I prefer the look of Metro to Crysis. I won't spend ten minutes babbling about how detailed the grass is, but I will spend multiple campaigns in rapture at the beauty of it as a whole.