Here are all 36 comparison screen shots from the NTSC GOUT release. I used VirtualDubMod to capture the frames and saved directly to PNG format from VirtualDubMod. I took a lot of care to make sure that I got the correct frame in each case.

http://rapidshare.de/files/33161021/NTSC_GOUT_Screenshots.zip.html

Looking at these screen captures and comparing them closely to the PAL screen caps that Zion has already posted on his frame comparison page it is clear to me that the NTSC release is sharper and contains less noise than the PAL release.