So I finally finished Resident Evil 6, and the first thing I'm going to say is the Gamespot score of 4.5 was total garbage. The guy overreacted way too much.
I have difficulty trying to give a solid opinion of the game. There are aspects to the game that are refreshing to see again, and others aspects that are flat or incomplete.
The atmosphere to most of the game is the best it's been since Code Veronica. There are a lot of dark, claustrophobic set pieces. It was definitely much improved over Re5's brightly lit scenarios. Unfortunately, the small arsenal and partners take away from the sense of fear. If you play by yourself, your partner can't die. There's no point in helping him/her because he/she will get back up. They are also pretty capable of killing enemies, especially during scenes where there are more than one AI helping. There were times where I was occupied with something else, and just let the AI handle the enemies. Playing with a partner is cool and all, but I believe it is the biggest detriment to capturing the uneasiness of past REs. It makes things too easy and too comfortable.
Despite the excellent atmosphere there are many over the top action scenes. I don't mind all of them, but there are a ridiculous amount of chase scenes. There's a car chase, a helicopter chase, a jet ski chase, and a motorcycle chase. It's like the game is trying to be a racing game. That time would have been better spent fleshing out the character/story.
I was really excited about the multiple campaigns, but it became what I feared: they were merely 4 shorter campaigns instead of 4 extended campaigns. I read they were all going to be 3/4 the length of Re5. Instead all are about 5 hours in length. It's hard to grow attached to any character/campaigns when they last that long. Not to mention you play some of the exact same scenarios as other campaigns.
Out of the 4 campaigns, I think I liked Chris's the least. It was more like RE5 than the others, and it suffered from the short campaign length. It was the 1st one I played though, so the broader story didn't materialize yet.
I could go on much longer, but I'll cut things short here. The 7.5 - 8.0 score is more accurate than the 4.5 Gamspot gave. I really want to like this better than Re5, but RE 5 at least had a coherent, focuses story, and it still retained the upgrades system of RE4 (I hated the upgrade system of RE 6). However, I really liked the atmosphere and the idea of multiple, converging campaigns. Just wish they were more focused and longer.