It will be the best at rendering jaggies of the three.
You'll be amazed at the clarity and sharpness at which the jaggies are rendered in PS3, xbox2 and Revolution will come nowhere near PS3 performance in jaggies and flickering textures.
Jaggies were this generations "bumpmapping", just not many people realised it.
You really think a line that displays "smoothly" on screen requires more prosessing power than a "jagged" line! Just look and compare: a "smooth" line is just that, a simple line, whereas a jagged line has much more elements, it's almost like hundreds of lines in one. Same with flickering.
It's sad to see the developers have become somewhat lazy, and current games do not feature much jaggies or flickering.
GT4 is disappointing because I xpected it to have more jaggies and flickering than GT3, but instead it seems to be having much less of them.
Jaggies are graphics, good jaggies are good graphics, console that outputs best jaggies is most powerful.