No game should have an average over 89.9%. Therefore, Super Smash Bros Melee is the best score, as it has the highest score any game should ever have. So from a totally un-biased and objective view, SSBM is the best reviewed game ever.
Spike from Sporgantown.
http://www.vgchartz.com/games/userreviewdisp.php?id=261
That is VGChartz LONGEST review. And it's NOT Cute Kitten DS