Tough choice. I'm going to go with Uncharted (just) over Gran Turismo. They are both amazing series, but there are fewer good action-adventure games than driving games (that I've heard of/played any way). Then again, there aren't really that many non-arcade driving games, but Uncharted still (just about) gets my vote.
Edit (OT): Before I forget, because I haven't been able to find it anywhere, what are "VG$" for? Thanks for any help.