While the original Half-Life 2 is a great game, Episode 2 is all in all a much more complete experience and stands as the greatest Half-Life installment yet.
Though the mute Gordon Freeman gets on my nerves a bit, it's not such a big deal due to the great cast of supporting characters that carry the story. There is some genuine emotion here, which is exemplary for a video game. There are also some fantastically fun sequences, such as the tunnel turret scene that has you defend a dying Alyx from hordes of antlions.
There are two highlights of the overall design that drive this installment beyond what's been seen before in the series. Firstly, there are the hunters. These guys are extremely well designed enemies, intelligent and totally capable of kicking your butt. And secondly, there are the open environments, which allow the hunters to show just how nasty they can be. I remember being in a rundown building at the top floor and seeing some hunters in the distant fields through the window. No biggie, I'll deal with them later while I finish off some Combine. About a minute later, I turned around and saw a hunter staring me right in the face.
And then of course, there's the final battle. Now, I do find video games to be pretty fun, but I'm very cynical and critical, and most of the time I'm just picking out what I don't like about the game I'm playing rather than enjoying it. But in the final battle in Episode Two, I was completely immersed. The action got so intense, and the combat was so frantic, I was sweating. It was a rather large swath of land, with multiple points where you could rearm yourself, and you basically needed to protect the main facility from a huge army of Striders, Combine, and, of course, Hunters. You drive around to different breach points in your car, blowing up the Striders using special explosive devices. By the end of the level, I was shooting things with my basic pistol because I was out of ammo. I cannot remember a time when I had so much fun in a video game before, and got so lost in what was happening that I totally forgot about reality.
And through it all, the ending left me fairly shocked and quite depressed. I did not see it coming, and found myself actually, genuinely caring about the characters.
Maybe there's some hope for video games yet.