Graphics aren't the only thing that matters in creating a game world. There's a whole slew of things, like writing, character development, the music...but I digress.
To answer your question...neither does. They both look great and, considering the engines they run on, did an amazing job. But I have to say...
...they're shooters. Don't they ALL look the same?
The button I carry around doesn't necessarily make things EASIER...