no spoilers, I promise
Why Uncharted 2 is amazing:
It has the best, most refined animation I have ever seen in a game. I'm not even talking about the spectacular attention to modeling, texturing and lighting, but the fluidity of character movement and actor's blocking, seamless action mocap and facial expressions that has been seriously improved since the last game. An original I already considered in the top 3 games of all time. On top of that I think Naughty Dog has some of the best texture artists in the business, apart from maybe Epic or Infinity Ward - the small touches are staggering. It's the closest thing to being in a movie I have yet to experience.
The plot is excellent so far, there are tons of extras and collectibles for replay value. I haven't even touched the multiplayer yet.
oh yeah and Drake becomes a zombie