Super Mario 64: 8.0
Your argument fails right there. There're lots of NES games that are not only pretty enjoyable today, but awesome. They may fail on the tecnology side, but they are damn fun. I'd take Blue Shadow over most next gen games, everyday of the week. Your comment that compared to next-gen games they wouldn't even score a 1 is laughable. Games are ultimately about fun, and it is now, and 20 years ago too. Of course I'd take GoW over DK, but I doubt I'd take it over SMB3, specially at 5 bucks. And well, you know, at characters there're little games that can beat DK, less GoW. Donkey Kong is a legendary character that has trascended the boundaries of gaming.
If you want to rate VC, do as 1up do: worth not worth. Easy, simple, no need to score them.