I don't expect many Wii games to score in the 90s.
So far, there are only 3 games that are exclusive to the Wii that have scored 90 or more: Brawl, Galaxy, and MP3. Twlight was a GC port, Ocami and RE4 were PS2 ports (after RE4 was GC port but they also included added PS2 content), World of Goo is on PC, and Rock Band 2 is multiplat.
To me, that is stunning considering the Wii is nearly at 50% market share.
The PS2 has almost had as many exclusives over 90% in that time: GoW2 and Persona 4. Hell, FF12 came out a month before the Wii, so it's almost tied. Stunning.