MetaCritic expectations are always a good show. Don't get me wrong, the website is a great tool and I think it's a great website, but this year has been testament to why MetaCritic isn't the end-all, be-all guide to enjoyment of a game.
We've had Final Fantasy XIII (83), Alan Wake (83), Fable III (80), Metroid: Other M (79), Gran Turismo 5 (84) and now Epic Mickey (73)... and yet people are loving these games! Some are calling these games their Game of the Year! The horror! The sheer horror! 
The fact is, that the final MetaCritic score has its uses... but I think that some people put too much stock into it. I've personally used MetaCritic in a different way. When I see a game (let's use Epic Mickey) and it's many scores, I like to take the highest score (90) and the lowest (40... ouch!) and use that as a range for how people can enjoy (or not enjoy) the game). Can some people see Epic Mickey as a stellar 90-100 rated game? Of course (which includes yours truly). Can others see the game as a largely flawed game? I'm sure that's the case for some people as well.
And as for here at VGChartz and most other areas (which includes MetaCritic), I've never been a fan of the 100 point system. If you take a look at my game collection and its ratings, you'll see that I actually use a 5 star rating. I find it to be much simpler and much more meaningful to my needs. A 100 point system uses Perfection as the higest quality standard (a 100) while a simpler system (such as my 5 point system) just uses my preferences and how much I enjoyed a certain game. So on a 100 point system based on "perfection", Epic Mickey (for me) would probably see somewhere in the 88-92 range (because the game does have its flaws). But with my 5 point system, I awarded the game 5/5 stars because it met my requirements of "I loved this game!".
Another person on VGChartz who uses a 5 point system is Khuutra. He was also a reviewer on VGChartz for a while. One of his most favorite games is God Hand. Now, while he was using the 100 point system based on perfection, the awarded the game a 7.8, because the game, like Epic Mickey, has its flaws. But it's also an incredibly fun and wonderful game to Khuutra, and with his own personal rating system, awarded the game a 5/5.
So yeah, I'm just rambling at this point... but I just think this whole MetaCritic craziness is a little... crazy. People just seem to put too much stock into a system based off of perfection, all while they could be missing out on a great game.
