I had plenty of favourites, and they all catered for the mood I was in at the time. For some great action I'd haul out Syphon Filter -
That was a kick-ass game. Nothing could better it. Well,not until Syphon Filter 2 came out, that is.
As a Star Wars fan I bought the game of the film. The film had reached out of the screen and punched me in the nuts, but the game was amazingly good. A bit of free roam, some RPG elements, pretty good action. I loved it!
And an honourable mention goes to Metal Gear Solid. Cutscenes were too long and it was more melodramatic than every daytime soap rolled into a great ball of cheese, but the gameplay was stunning. And then the sequels came out on PS2 and PS3, and they were all shit. So that was that.