Please note that #3 and #4 are below.
#2
Metroid Prime
I was first introduced to Prime at my friend's house. We thought of it then as an impossible game with an impossible first level. Basically, we were so dumb that we couldn't get passed the first boss. Idiots.
Around a year later, that same friend calls me up, telling me that he's close to finishing the game and that it was one of the greatest games he had ever played. Who would've known?
So I buy the game a couple days later (and fortunately, i beat the first level). Being smarter than before, I was able to experience the game to its maximum, and actually understand what was going on.
Metroid Prime is all about atmosphere. Probably one of the most atmospheric games ever created. There is absolutely NO dialogue, and you are forced to hunt and gather information using your scanners. You feel like you're on your own, on a quest to regenerate a dying world.
Prime beautifully converted Metroid to the 3D world. It is BY FAR one of the best looking Gamecube games. Everything is detailed wonderfully, from the shine on Samus' armor, to the reflection of Samus' eyes on her visor.
Additionally, Prime successfully converted the gameplay aspects of Metroid to 3D as well. The 3rd person morph ball is done perfectly, and the use of first person for Samus fits extremely well.
Which is why it's my 2nd favorite game of all time.
#1 (HOPEFULLY) COMES TONIGHT...