Should I get COD:WaW on 360 or PC?

Im still decideing and I need your help. I will be playing multiplayer a lot when I get this game, but I don't have Live Gold, just a bunch of 48 hour trials that I can put in. Wether for the PC, I can play online for no cost (excluding Internet bill lol). I do enjoy playing on the 360 more though. Help me pick, I cant decide.

~Thanks!