This is my personal opinion, so don't get all offended.
I never liked the xbox consoles. I didn't like the games on the original xbox; PS2 and GC had everything a gamer could want except for Halo. I never really got into Halo that much, just played it with my friends every once and a while. I don't often play FPS games without a keyboard & mouse. There was one game I really wanted an xbox for and that was Forza Motorsport. I ended up buying the game and borrowing my friends system for a while to play it.
Of course then came the xbox360. First off, Doom 3 is not a xbox360 exclusive, which is the only game in the OP list I liked. I haven't seen a game any of my friends have that makes me want to go out and buy an xbox360. The common saying is "The games make the console". Plus, when it comes to 'respect', they lost a lot of it by designing a system that is faulty. The xbox360 for a long time had a problem with overheating which caused the RROD. I am not sure if they ever really fixed their system since I keep hearing news of problems. Of course, XBOX fans are tired by now of hearing about that issue.
As for Windows, which another poster mentioned, it is a decent series of OS. The main benefit from it comes from the fact that since so many people use it, it is so well supported. Other than that, Ubuntu and MacOSX tends to work better. I have experience with all three OS that I got while working in a computer repair shop.
That is my opinion. As you can see from my badges I own a PS3, Wii, and PC. My PC, for the most part, works a lot like an XBOX360 as many of the same games come out for both (which makes them non-exclusive to xbox360) and multiplayer goes to the same servers.
