Half Life 2: What's up man?
Halo 2: I'm cool!
HL2: Man f*#k you! You wouldn't know cool if it jumped up and bit you on yo weak ass.
dude 2: no, i just pass up the oppitunity to buy the greatest game of all time so i have more time to masterbate and make fun of the old and retarted.
dude 1: you shuld get it, it rules!
And look how far Half Life has come, people are still making mods for a 6 year old game. Imagine what they can do with the source engine!? Half Life 2 will last much longer than Halo2 and I bet Microsoft is trying to make Halo 3 as fast as possible so people don't lose intrest in the Halo series. Whereas Valve will take it's time because Half Life 2 isn't gonna lose intrest anytime soon.