Well, I do love many games, but these are probably my more favorite ones. In no particular order;
SPOILERS
Shadow of the Collosus: It's practically "video games as art" personified. It is one of the few games that has made me cry tears. And not manly ones, little girly blubbering ones. Its primary theme of "letting go" has stuck with me through out a lot of my life, to be perfectly honest. You just have to...
let go at the end. Just let go. And the game is over. Few games have the balls to deliver such an ending.
Metal Gear Solid 4: Guns of the Patriots: Again, this game made me cry, only this time manly tears. Despite its flaws in the storytelling department, the fact that it brought together years of Metal Gear lore into one story, tieing up loose ends, and generally delivering an epic ending to a series. At the end where Snake kills himself, I just thought that it was supremely gutsy to end off one of the greatest characters of all time (though he didn't actually kill himself, which I thought was a cop-out)
Elite Beat Agents: This is a heavily underrated classic on the DS, one that I think everyone should play. It's concept is ridiculous, and yet it all comes together with awesome music and pitch-perfect gameplay. Not only that, but this one
also made me a little teary eyed! From the "You're the Inspiration" level to the final two stages where everyone is shouting "E.B.A! E.B.A!" to revive the Agents is friggin' spectacular.
Team Fortress 2: While I do get frustrated with many online games, Team Fortress 2 is perhaps the most balanced out of all of them. It has a simple design with fun atmosphere, and it provides a very unique aesthetic. You instantly know what your enemy is (Heavy, Scout, Sniper, etc...) and you instantly know some of the weapons they can carry and you instantly know what strategy you need to beat them. With all these other games (looking at you, Call of Duty) you look at a guy and will instantly die because you couldn't tell if they had stopping power or Juggernaut or something like that. It's impossible to balance something when you have no idea how you are going to counter it. This is why I put TF2 on the pedestal of supreme balance that it deserves. Though the hats do get annoying from time to time.
Grand Theft Auto: San Andres: This game is the polar opposite of GTA4. I absolutely despised GTA4 as much as it pains me to say it, because it was just so
bland and so
boring compared to its predecessors. San Andres was fun, 'splosion ridden, and it had
fun cheats! It had interesting weapons, vehicles, all sorts of stuff that the newer GTAs just completely cut out. It's one of those few "fun" games that I don't mind just being "fun".
END SPOILERS
Just for completions sake, as I just thought of 5 games off the top of my head, my honorable mentions that I can think of right now go to;
Mass Effect 1 and 2
Uncharted 1 and 2
Persona 3 (haven't played 4 yet D
Ratchet and Clank series
Jak and Daxter series
Sly Cooper series
Aaaaand, that's all I can remember for the time being.