I have to say that I am also pretty much a playstation guy. My first system following the NES, which everyone has had, was the original playstation, which reintroduced me to the RPG with Final Fantasy VII, although I still have yet to play Final Fantasy VII. After playing Halo 2 on XBox with a group of friends, however, I was pretty much hooked. I soon after bought my own XBox as well as Halo 2. Sadly I didn't start with the first Halo game, but actually didn't even play it until a few weeks ago, and I have to say that all of the talk about the scope pistol were right. That gun was by far my favorite. Halo 3 also didn't disappoint, especially with the ability to drive the big mobile base on the desert map.
