So which is the better version? 360 or PS3? IGN has a head-to-head, but you have to be a subscriber
COD 4 is available on the PlayStation 3, Xbox 360, and PC, and each version holds up admirably. The differences between the two console versions feel mostly negligible. Both systems deliver good frame rates and have good, easy-to-use multiplayer setups that most closely resemble Halo 2 and 3's party system and matchmaking playlists. The PC version of the game uses a more traditional server browser to get you into games. Both systems work just fine on their respective platforms. The PC version has the ability to run in a higher resolution, if you're equipped with a PC that can handle it, but it seems to scale quite well. You can also create servers that allow up to 32 players to play at once on the PC, as opposed to a limit of 18 in the console versions, but given the size of the multiplayer maps, putting 32 players in them makes things a little too crowded. Despite listing 1080p support on the back of the box, COD 4 appears to prefer 720p on the PlayStation 3. The only way to get it to run in 1080p is to tell your PS3 that your TV doesn't support 720p or 1080i, but the difference seems minor. Either way, you'd be hard-pressed to tell it apart from its Xbox 360 counterpart. And all versions control just fine, making the decision over which version to buy totally dependent on which controller you like the most.
Courtasy of gamespot.com