http://www.vgchartz.com/hwcomps.php?cons1=Wii&reg1=All&cons2=PS3&reg2=All&cons3=X360&reg3=All&start=39355&end=39593

If we look at the chart, PS3 during the last 5 months managed to outsell XB360 very often more than 1.4:1, but sometimes also more than 1.6:1 and once more than 1.75:1, so it's possible, not automatic or easy, but possible.

 And the diference you will see with it will be due to teh fact that this is an exclusive to the PS3, not one that is on both consoles like GTA4.   Had GTA4 been on just the PS3, sales would have been even higher for the PS3, but since they had to spread the love out it didn't help the PS3 as much as a good exclusive would.

 I think some who may have passed on MGS4 will be impressed when they see the reviews being high for the game and decide that it's worth it to jump to the pS3 and also be able to play GTA4.   Some have held out for the 80gb system and that will also help out the PS3. 

It'll be a close one, really. To me it seems that interest in MGS4 is far greater than in MGS2 (not to mention MGS3). Also, it's the first huge PS3 game. PS3 has been outselling X630 pretty much whole year. X360 has nothing interesting before Fable 2/GeoW2. PS3 80 GB surely has demand, and the bundle should help a lot. Also, it will affect X360's sales as well, not much but a little. I think there's a slightly bigger chance of PS3 hitting 15M before X360 hitting 20M, but it's still going to be a very close one. I'm not even sure if it's a good idea to try to predict this (not important, very close one; it's going to be pretty much about luck).

Well, Ps3 has a WW launch of MGS 4 the 12th June, correct?

People are predicting a total hardware of 500K that week. The 360 will sell around 100K that week, shortening the gap by 400K, down to 450K.

The Ps3 now has to sell 50% higher for the rest of the week, a possible feat.

Say that Ps3 sells 125K and X360 sells 100K for the next 2 weeks before MGS. That would make the sales go down to 916K for the 360 and 1760K for the Ps3.

Then 500K vs 100K for MGS launch week, leaving it down to 1260K for Ps3 and 816K for the 360. Let's say 1250K and 800K to make it easy. This would mean the Ps3 would have to sell 36% more than the 360 for the following weeks. So far this year, the Ps3 has sold 36.6% more than the Ps3. This means that, if the Ps3 manages 500K WW for MGS launch week, it would have to stay as much above the 360 as it has throughout this year so far!

I doubt that it will see 500K hardware, 300K seems more realistic to me.

That means it would have to sell 45% more for the other weeks, which I also see as possible.

So I say yes, the Ps3 should make 15M before the 360 makes 20M.

I agree with jjseth

ok, so when japan is selling

 You do realize that I'm not the typical MGS fan and have never owned one of the games before?  It could be a possibility that after receiving some great reviews that gamers who may not have noticed it before may give it a shot once they hear the buzz and reviews for it?  After seeing the demos and everything on this game, I will make a jump into a game series that I frankly didn't care about before. 

 I think it will do very well in japan, and worldwide.  It won't sell GTA4 type numbers (combined I'm talking about) but will be a very good seller for the PS3. 

I am doubtful. Very doubtful.

Without a major adjustment I just don't see it happening.

PS3 looks like it will get to 15 million in 13-14 weeks (not counting recent "others sales"

360 looks like it will get to 20 million in 9-10 weeks.

MGS4 might bump the PS3 target closer by a week, or 2 maximum (2 weeks close means 300k extra sales from MGS4 influence)... but that is still 11-12 vs. 9-10.

 Tiresome and, aesthetically, not good satire because it is too far out there beyond what people actually argue.