From Toasty Controller...
"- Must have at least 10 reviews on GameRankings.
I found 10 to be a suitable sample size. Some could say it's a small required amount, but I found it suitable when going through the oldest generation of consoles on this list.
- Must be console exclusive or have 3 or more months of timed release.
This is obviously going to be argued about in some way. Going through the list, there are several games that came out mainly a year or so on one console after it already debuted for a different console. The console with the original release of a game, by three months at the very least, will be added to the list for the respective console. Example: GTA San Andreas will be included in the PS2 Top 20, but not the Xbox Top 20, due too original release. Third party titles that were release for multiple consoles within 3 months of each other will not be including into any consoles Top 20, so games like Call of Duty, L.A Noire and so on will not be a factor in any score."
Apparently I botched the numbers a little. This is why I'm not an accountant.
PS2 - 92.67%
PS1 - 92.12%
N64 - 91.12%
DC - 90.64%
360 - 89.83% <<<
Xbox - 89.73%
PS3 - 89.73% <<<
GC - 89.62%
Wii - 88.08%
Alright, so I'm sure these pleases a lot of people, as it also surprises me. I had a second opinion on my original results and it came out the same way after several re-calculations. After noticing someone pointing out that the average is lower than the minimum, which is impossible. I went back and calculated it all again, and being in no different condition than the first time around, this time came with different results.