GR IGN on Wii
Besides we all know the site to claim Wii bias is 1upSite's Avg Ratio For Wii: 60.3%
GR Avg Ratio for Wii titles this site has reviewed: 68.0%
You'll find similar results for the other systems. There will always be review websites that give high scores to raise the average and get exclusive reviews. Just accept that there aren't as many good Wii games and stop attacking review sites.