Found on Kotaku, Hideo Kojima, designer of the Metal Gear Solid series, tells us the difference behind the three next-gen platforms.

PS3 would be like a dinner that you only have once a year or twice a year on your anniversary etc. Xbox 360 will still be a special dinner so you might go there two or three times a month on the weekend or something. Revolution is the kind of great dinner that you have everyday at your home. What I want to emphasize is that all three are dinners meaning that they have a salad, they have a soup and maybe have a dessert but they are a little differently, maybe other dinners have two salads or two appetizers or maybe extra coffee on top of that. The point is that they are all individualistic dinners. So if they are all dinners, like a steak dinner, the choice is up to the users and the game designers at the same time.

If the game creators and the users want to have a great steak for their anniversary, they go maybe to PS3. But if they want great dinner, great steak with their family, a little bit more casual during the weekends, they might select Xbox 360. Or why not have a great steak at your house everyday, they might choose Revolution. So my impression of the battle between the consoles is, it’s not about what kind of dinner it is. It’s more about how much the dinner will be. Will it be worth the cost of being served? Or where can I have this dinner – number of restaurants, is it near my house or do I have to take a cab or train or bus? I think the battle amongst the next-gen platforms lies in that area.

Well, that certainly clears things up.