I honestly think ratchet and clank will sell more than MGS4

Why would you think that?

MGSIV has already recieved massive hype, and I'm sure it's going to get insane promotion close to release. It will sell as much, if not more than MGSII. 

I personally think R&C is PS3's biggest title this year...akatsuki0wn3d

RAC is a great series and all but it isnt as big as MGS4. I think RAC will do well and sell over a million copies like RFOM did and maybe add new gamers to the franchise but its just not on the level of MGS4. MGS4 is a type of game that can move systems off store shelves and especially the hype for MGS4, this is a game that is up there with Halo 3 and GTA4. I look forward to buying RAC but MGS4 is still my most anticipated game as u can see from my sig. :)

Why would you think that?

MGSIV has already recieved massive hype, and I'm sure it's going to get insane promotion close to release. It will sell as much, if not more than MGSII.

the-very-best

There aren't enough PS3's for it to sell more than MGS2, and with a $600 price tag, that isn't going to change in the next 6 monthes. 

Ratchet and Clank is going to take a hit this gen and only sell 500,000. MGS4 = 4+ MILLION.

I bought a PS3 for Rachet and Clank... not MGS4.  I'm only one person though.

The 360 has MGS4 type games... but nothing to directly compare to Rachet and Clank.  I think Rachet and Clank could very well be the winner.