I would buy the 360 or pc version first as they have better online play.

Otherwise then sure ps3 version all the way.

Rent it, if you liked, bought it. if you don't, saving money is not a sin.

If I were you I'd pick up CoD2 on 360 or PC over 3 on anything.

Infinity Ward did not make 3, and consequently it is not a good as the earlier installments.

If you already have R; FOM then you should probably just wait for Rainbow Six Vegas or Fear. I played CoD 3 on PS2 and I think that it is not hugely better than CoD Big Red One. I think that Resistance Fall of Man is far better, frankly, I'm a bit bored of standard WWII shooters. Remember that GRAW 2 (PS3) is also coming out soon, so if you might consider waiting till then.

 Okay, but what is worse about it?

I have not played that game yet (and might not ever) but I did rent Medal of Honor: Vangard for the Wii today, and I must say they did an excellent job. Call of Duty is the same type of game and I do believe it got mediocre reviews. I dont know how Medal of Honor reviews got, but it just came out and is really good. Graphics are good, gameplay is amazing, and all movement like durring explosions are very good.

 I guess this really doesnt help you though, since you considing getting a different game for a different console. But still, Id go with Vangard for the PS3, although its not the amazing expirience I got playing through the first couple of missions on the Wii version.

Hum...vangard has 54.8% ratings so far on gamerankings.com. that puts it into the bottom 10 on the Wii so far. Call of Duty 3 may be "mediocre" compared to PS3 rankings but it would be 6th right now on the Wii, at 80.2%. To each his own, though, I guess.

hmm, well i really really liked it. I dont see why it would get such a low review. Even if you dont like using the pointer to look around, it still is a very enjoyable time.

although if you check the user ratings, they are always sinificantly  higher and the user rating for the wii version is ussually slightly higher than other versions.