Thanks to the TC for mentioning Portal as its own entity instead of as "The Orange Box" which is not a game, but rather a collection of games, most of which really aren't that good in the first place. Portal is certainly worthy of its own identity other than being simply known as the puzzle section of a pack of rehashware.
Finally some people that agree. ;-) Half-life2:ep 2 is okey, it's better than Episode 1 for sure, but it still gets way too high ratings. It's still just Half-life2 with a fancy name, perhaps looking a tiny tad better than HL2: ep 1 did.
I think the art style of Team Fortress 2 is cool and funny, but the game itself is quite a joke. It's unbalanced as heck and weren't those Team Fortress people the ones who said 'yeah, we would make a game in which all characters will be played, because none will be superior to the other class'? Well .. they didn't quite manage to do that lol.

The amount of maps you get is quite pathetic too, I mean really for a multiplayer focused title you would expect at least a dozen maps or so. I have to say that the maps themselves aren't really that bad.
As good as the original HL2 was, adding it to the box really doesn't make it score more points for me, especially because I already owned it and now I own it twice. For people saying 'yeah, but perhaps other people didn't have HL2 yet', true that may be true for some people.. but people looking for an expansion will always own the game already. Now why didn't Valve cut the price in 5 equal pieces so we can buy the games separate from Steam without having to scratch our head wondering why it's so much more expensive as individual titles.
Off course the console version of the Orange Box is a different story, but even then the whole hype around the Orange Box tastes funny, wouldn't you agree?
The one game that's worth buying the Orange Box for would be Portal. It's really a very good game and although 6 hours or so of gameplay isn't that long and the levels could have been as interesting as the last few levels, I think it does deserve the title of Best Game of 2007. Alone that is!

I really don't understand why the Orange Box get reviews for the package as a whole instead of the games separately.
Runner up would have to be: Assassin's Creed , very good game, very interesting sandbox style and story and I'm a sucker for doing all these Prince of Persia-like acrobatics.
It is one of the best designed games I've ever played (and it has nothing to do with the Portal Mechanism).
True, it's very polished, not much to complain there.
Aah, I forgot the Indie Game of 2007, I've got to agree with Gametunnel here; Aquaria!!