Electronic Entertainment Design and Research has given us results of a two year survey that shows how each console’s stable of games compare to the competition. “Regardless of how you slice the data, games that score 85 or above in quality sell 15 to 20 percent more in their lifetime if released in the holiday than in the off-season,” EEDAR analyst Jesse Divnich said.

The study shows that 1 out of every 8 games for the PS3 scored an average review of 85 oercent or higher, while that ratio drops down to 1 out of 50 games for the Wii and DS. Taking into consideration the fact that the Nintendo consoles have a  higher ratio of shovelware that is rushed out to take advantage of their popularity, which skews the numbers drastically, the study broke down the average reviews into the quarters in which they were released.

Giving each game a “quality score,” an EEDAR aggregate number like MetaCritic, the survey looked at more than 3,000 games from 2006 to 2008 and found that only 2 percent of games for the Wii and DS scored 85 or higher. Coming in next was the PSP with a 4 percent share, followed by the Xbox 360 with 10 percent, and the PS3 closing things out on top with a whopping 13 percent. Overall, the gaming industry came in with about 5 percent of games scoring 85 or higher.