I would buy a 360. Because all FPS that come out on the PC will most likely come out on the 360. With the 360 you'll always be playing at the best graphics. You don't have to worry about lowering settings to get better performance. The 360, at least for me, would last me for more years than an upgrade, so it's a much better value. On top of that, you also get exclusive platformers on the 360 and possibly other genres as well. In terms of variety, there is more that the 360 can offer you in exclusives.