@ makingmusic476
From what I understand, the edram that theoretically provides free AA is not large enough to hold a full 1280x720 image, which is why most 360 titles that utilize the free AA are 600/640/685p (Halo 3, NGII, etc.),
Correct, but Halo 3 does not feature anti-aliasing, instead they implemented HDR.
The ATi chip was pretty powerful for its time, you just have to look at a launch game like Kameo (which also had no AA though and used up to 85% of available resources from all 3 Xenon cores, the lack of AA was already a clear early indication that Anti-Aliasing isn't really free). Gears of War was eyecatching and likely Gears 2 will be too, getting the most out of what is possible to do on the 360.
Going with the EDRam approach having some more of it would have made it far more useful/powerful, considering it is meant to be a high definition console.
The PS3 and 360 GPUs are about on par with both chips offering their own advantages and disadvantages, a crucial difference however is how the RSX was styled to take advantage of the Cell processor. The Xenos would not fit well within the PS3 architecture, especially the shared bus for both GPU/CPU, a shared memory approach wouldn't. The Cell needs dedicated fast low latency RAM to work with to get the most out of it. Some people may want to point out the 360 can even do 1080p with AA. But that's linked to small predictable environments or bad framerates.
Nice if Ubisoft pushes more out of the PS3, but IMO that's still only the tip of the iceberg of what's possible to achieve for the long run.
Some will say a high end PC can be much more powerful and that's true (upgradeable RAM, GPU, CPU, etc, etc, a big advantage as well as a disadvantage to some extend), but is reflected on the price, as a new graphics card alone can cost more than a full PS3 with a Blu-Ray drive, harddrive, GPU/CPU, controller, etc costs. Yet it's not even that much of a clearcut victory for the PC with regard to long term potentials for currently sold configurations. There are other factors as well, the Cell can be a lot more powerful at multi-media and games than even the most powerful of PC CPUs of
today, the PS3 has Blu-Ray by default which means that potentially PS3 games may provide more diversity in graphics, higher quality audio and/or more other content on the PS3 as it's not yet a default on the PC. Also PCs come with Windows which is quite a resource hog and there are far better long term opportunities for hardware optimizations on a console (due to predictable attributes across a large uniform user base for a very long period of time).
The most noticeable difference between PC and PS3 may be the for many people much nicer user experience, more comfortable to use the device with a large screen HDTV and a well supported wireless gamepad by default.