ACDSee gives the worst image? I have never encountered this problem in the years that I have been using it. It is fast, reliable, and easy to use. Just make sure it does not expand any low res pic to full screen. Internet Explorer can't even count as a decent image viewer, can't even arbitarily resize images, can't thumbnail, can't view EXIF data, etc.
I just need to browse and rename... Nikon View 5 does not allow me to rename and does not render the photo nicely.. I have to go back to explorer to find the file to rename. I will still use Nikon Capture to edit the photos..