I'm surprised MGS4 and Gears 2 didn't get a mention, especially with Mirror's Edge on the list (I like the sterile look that's calm yet creepy, but it's not a pretty game technically and the 2d cutscenes are meh).
I agree with their choice though, there are some parts of PoP that are truly breath taking.
slight spoiler for someone who wants the game but knows nothing about it:
The alchemist's area's are really amazing, probably because there's alot more going on and it's a bigger area than the others
Luckily I stuck with the game to see that area because I started with the Warrior's area and boy were they uninspired.