One thing that deserves a comment is how different this game looks from the rest. I've read some posts from people who are calling for other games to use this "engine," and that seems pretty ridiculous given that this is far more of an achievement in terms design than it is a technological wonder. The tech is obviously quite, er, solid, but the real magic comes from how Guerrilla has balanced everything.
To give a real, recent example, if you're looking at Resistance 2, you can tell that they are trying to emulate a certain look and force it to run on a system, making for a pretty uneven and generally unspectacular looking product.
This one, however, seems to be designed for the system. There are plenty of not-so detailed textures here, but somehow it works, maybe in part because the objects in question don't call for perfect detail. And even the textures that are genuinely sharp are still somewhat muted, so as to keep a good image balance as opposed to the extreme drop-off you'd find in a game like Resistance 2. And whatever weaknesses there are, they are made up for tenfold by for example the great work on atmospheric and ambient effects. So they have effectively managed to harness both the strengths and the weaknesses of the system, and the result is a spectacular and unique looking game. Not everything holds up to close scrutiny, but I don't think that matters.