Though we're all excited about the next gen console war, let's not forget the good games from this year.
As far as the PSP goes, the best game was Lumines. This addictive puzzler was one of the few PSP games that wasn't simply a clone of a game that was already popular on one of the consoles.
For the PS2, the best game was God of War. The original fresh gameplay combined gory action and fresh puzzles to make it my favorite game ever.
And as for the Xbox... Well, mine has sort of been collecting dust. ^_^