Serious Sam 3 - 9/10. Great graphics with some of the best lighting effects I've seen in video games and nice looking textures and models. Some of the levels are huge with really large structures and tons of enemies coming at you at once, which, coupled with excellent graphics gives a sense of epicness that few games can provide. On the downside, I found the boss battles too tedious and not fun, and I don't think I would want to replay the whole game again as some of the earlier levels are not as great as the later ones and the gameplay is a bit too repetitive. Overall, this game is truly wonderful though and I much prefer it to single player campaigns in most if not all modern military shooters, which are usually far less challenging, far more simplistic in level design and just don't provide the fun that Serious Sam 3 does IMO.
Alan Wake - 7/10. The gameplay is fun in this game, but I found the story quite silly and I think Alan talks to himself too much. The game is also not very scary at all IMO and while environments look pretty, character animations could use some work. Overall, this is a fun game to play, but not perfect by any means and the story sucks IMO.
Doom 3 BFG Edition - 8/10. The graphics are surprisingly good for such an old game I have to say, especially the lighting effects and really add to the atmosphere and immersion. Sound is fantastic too. The game is quite scary I find. Gameplay is dynamic and fun, and provides good challenge, especially in the later levels. This game truly feels like a classic and I think that its story, level design, sound and the overall execution are truly masterful. There is one serious downside though and that is that the game is too long IMO and things start getting repetitive after a while.
Preliminary impressions on games I am just starting:
Far Cry 2 - Seems like a pretty nice game with really good graphics, decent character animation and OK storyline. It seems like the gameplay might get boring after hours of roaming through the huge game environment.
Dead Space - Damn, it's scary, although third person view does help in making it tolerable. I don't think I would want to play this in first person view. lol Graphics are sold with good lighting and character animations and the storyline seems really nice as well. However, I find that textures could use some work as they are not nearly as detailed as I would've liked and turning on AA in the game menu really blurs the image and makes the game look ugly,
Quake 4 - I had some annoying issues with input lag and low fps with high AA setting in this game, but after tweaking the settings, it works just fine now and the graphics are similar to Doom 3 (very good, even today) and gameplay seems fun. I like character animations too, which look nicer than those in Doom 3.
Max Payne 3 - Wow. This game looks and starts out very impressively. Graphics are truly top notch, story seems great and gameplay is lots of fun. Love it so far.
Edit: Oh yes, forgot to mention - I play on the PC guys, so these are all PC versions.