[DarkStar]

I have a PS2 but have played them all. I also like the GameCube but my fear with that one is the lack of more mature games. The big 'N' in the past has made mostly games for the younger kids market and other games that are cute. I'm hoping that this will not be the case with the GameCube. The only mature game I have seen for that system is the StarWars one, and later Resident Evil. I hope more mature games are coming.
Halo on the XBox is also alot of fun, Co-Op it's even better. I think it will do well if it can get support from the developers and release more quality games. The fact that not many companies in Japan are supporting the XBox could be a real problem. Best hardware add-ons/support out of the box.
PS2 already a year outdated. I agree that the other machines seem to have better graphics. But the PS2 has the best games currently, and the fact you can play PSOne games on it is a big plus. It's a pain to work with (I should know it's my job to program that stupid thing). Overall I think the PS2 is the best system right now IMHO. It's huge library of games and the PSone games it can play give it a huge advantage.