Tomb Raider Angel of Darkness takes the cake for me, particularly when you consider how long the development cycle was, and how much hype surrounded the game. Game was buggy. The characters handled like cement trucks. The new features in the games (RPG-like skill development, and dialogue trees) were poorly implemented and non-sensical. Some of the puzzles were just plain stupid (shooting a ghost with a gun to stun it? Please).

Eidos was right to dump Core Studios after that debacle. Fortunately, Crystal Dynamics has now produced two very solid TR offerings with Legend and Anniversary.

More recently, I was very disappointed with Splinter Cell Double Agent. Game had a lot of potential but just hadtoo manybugs to be enjoyable. One in particular involved a problem with the mini-game for cracking safes. Controls would just refuse to work at times and you could go no further in the game (or at least you would have to skip an objective). There was also a bad game-crashing bug on one level any time you tried to re-load a save. And with SC games, and all the trial-and-error involved, you were re-loading a lot. The new SC Conviction looks interesting. Hope they've fixed the problems from Double Agent.

Well, I don't know if I'd exactly die for these, since then I wouldn't be able to play the games (except in the big arcade in the sky), but for argument's sake, I'd say:

1. Max Payne 3

2.A new Jedi Knight game that brings back Kyle Katarn as lead character and amps up the Jedi powers (this sort of sounds like what Force Unleashed will be on the consoles when that comes out)

3. Alien vs. Predator 3

Besides the ones on the list, I'd say:

1.  Tomb Raider - Anniversary.   Tomb Raider - Legend was a pretty good game and redeemed the series.  I'm curious to see what the original Tomb Raider will look like with the updated visuals from Legend.  And from what Gamespot has written, game will also add some fresh twists and content while keeping a lot of the memorable elements.

 2. Stranglehold.   Since it doesn't sound like there will be another Max Payne game, this may be as close as we get.

No One Lives Forever 2.

 You get to shoot mimes while they say cheesy lines like "I am damaged" or "The pain is excruciating" in thick French accents.

Not to mention, one of the chief villians, is not only a mime, but a midget to boot.

I don't play many RTS games.  I played LOTR : Battle for Middle Earth solely because I'm a LOTR geek.

 I understand from many RTS purists that BFME is kind of RTS-lite in order to attract newbies, but I've got to say that I thought it was a great game.  The single player campaign was long and sprawling.  Trying to build up your hero and general points to buy new abilities was quite addicting.  The maps offered some good variety that really resembled the spirit of the movies (particularly Helm's Deep and Minas Tirith).

 BFMEII and its expansion were also good, although the single player campaigns were very short.

There's a lot of choices, but for me, I'd say:

1. Jedi Knight2 - Jedi Outcast (force powers were awesome.  Really made you feel like a Jedi)

2. Max Payne2 (as good as the first MP game was, MP2 was better)

3. KOTOR1 (very immersive.  Great original story.  And long.  Definitely got your money's worth on that one).

As others have said, it depends on the game and genre.  Obviously after beating an adventure game like Myst or Syberia, there's no real reason to play it again.

With shooters and some RTS's or RPG's, I'll get an itch to replay them.  I probably replay Max Payne 2 a couple of times a year by just playing a level or two spread out over several months time.

 Actually, I've been replaying a lot of my games recently.  Been going back and cranking up the difficulty level.  There's been a bit of a dry spell in games coming out in which I was interested.  However, there are a number coming out over the next few months (Crysis, Stranglehold, TR Anniversary).  And I did just order God of War II for the PS2.  I'll always prefer the PC, but can't let that loyalty get in the way of a good console game.

I'm not sure that any LucasArts game can be considered under-hyped but, relatively speaking, I thought Republic Commando was a fabulous game that didn't get a lot of attention.  I think it came out around the same time as the first Battlefront game, so that might explain it.

 Squad controls and AI in that game were great.

AvP2 rocked.  Marine campaign felt like it was straight from "Aliens".

 I'd like to see another game, and I'd love it to be set on the home planet of the Aliens.  It would be interesting for the game to fill in some of the backstory of the species that was left unanswered in the movies and games.  Where the heck did they come from?

In terms of beautiful, immersive worlds, I would say Myst IV.  It's an older game, but beautifully done.

 Adventure games are not everyone's cup of tea, but if you just want to take your time and leisurely play a game while drinking in the surroundings, Myst IV is ideal.  The hand icon allow you to tap on all the objects in the world, giving you a sense of texture and density (a "ping" when tapping metal, a "knock" when tapping wood).