I really don't know how we got on the subject of ps3 since the article was about the 360 and the wii, but I will reply to you anyway. By your logic, No exclusive game this year on the 360 has been "AAA" except Braid. So does that mean that all the exclusive games on the 360 are bad? NO.
So just because Ratchet, Uncharted, etc. are a percent away from 90 on metacritic they are not worthy of a purchase? GTA 4 is the highest rated game on both the ps3 and the 360 but does that mean its the best game on both consoles? NO it doesn't. Personally, I thought GTA4 was boring and repeative, but many people still consider it a great game. And you say that the 360 version of gta4 has 2xAA and is in true HD, but most reviewers still think the ps3 version looks better, so what does that tell you?
And as far as Multiplat games are concerned, I don't need to argue because most play the same. Burnout, DMC4, GTA4, BF:BC, Quake Wars, DBZ:BL, R6V2, Soul Calibur 4, etc all look the same on both consoles.
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