It's all fairly borderline, does it really matter. Uncharted 2 isn't just amazing because of the graphics, but because it is nearly perfect in pretty much every way (greatest game ever!!!)
Uncharted 1 also looks great, and it was the 2nd game that literally made my jaw drop while playing (Motorstorm was the first as it was the first PS3 game I played on an awesome Sony demo station)