Should I buy COD4 for PC or for my Xbox 360?

[masjana.liza]

I am torn between buying this game for my PC or my 360....

I don't know which one would be better in terms of graphics and gameplay because my computer can run the game between 45-100+FPS which isn't bad but the Xbox 360 can run the game at 60FPS all the time. Has anyone tried both the PC and Xbox 360 and if so....please let me know which one looked better and which one had the better gameplay.

Thanks!!