The Giant Bomb Review is not surprising at all. Anybody remembers that video they posted during the beta? It was clear they were too used to the CoD games, to the point they barely understood the basic gameplay (let's spray this Assault Rifle thing from across the map, surely I'll get a kill using only a couple of bullets, and with a bit a bit of luck I'll even get a headshot, yay!!!) It was obvious they weren't going to love the game, so an 8 is actually pretty good considering their CoD bias.
The Gametrailers review is a bit more surprising, especially considering they gave Halo 3 a 9.8 in 2007. The person doing the review doesn't seem to understand the gameplay mechanics very well (for example, they complain about the assassinations, saying they take too long) and that comment about the feature set not being that special because Halo 3 had most of them 3 years ago is quite ridiculous too (yeah, because since then every other FPS has had them all, right? LOL)
So yeah, it would be nice if all the reviews came from people that were at least somewhat familiar with the Halo games and their mechanics, with no preconceived bias against them, but hey, the world is not perfect.
Yeah, Gametrailers is one of my favorite sites for reviews too, and the review itself is quite good overall, but those two comments, and the score (in comparison to Halo 3) were kinda strange.
Bye