It all depends on what kind of genres you like. Ultimate Genesis Collection is an incredible value, especially with save states and HD-res remakes (trophies don't hurt either).

But in general we can say:

Quote Originally Posted by I Don't Need A Blaster View Post
Valkyria Chronicles, Disgaea 3, Metal Gear Solid 4, Unchartered Series, Heavy Rain, Fallout 3.

Thats the obligatorys out of the way.
pretty much.

My top 3 are Metal Gear Solid 4, God of War III, and Killzone 2.