Sure, Gamoc's blog on Thursday was written mostly from the heart, but this morning IGN's exclusive http://xbox360.ign.com/articles/869/869381p1.html was posted, and confirms much of what we said two days ago.
The perfect scoring game, with 10s across the board, clearly states that for those wanting to know which version looks better, the edge goes to the PS3. The textures and framerate are comparable, but the PS3 has far less pop-in. -Strike One.
There are framerate hitches here and there and (particularly on 360) there is some texture pop-in, but it actually runs better than I expected' the review goes on. -Strike Two.
The PS3 has better anti-aliasing making it look a little cleaner. Because GTA IV can preload onto the PS3 hard drive, the in-game loads are faster. Don't worry Xbox owners, the load times are rarely more than 30 seconds and don't occur very often. -Strike Three. You're Out, Xbox.
In case you missed all that: The slight visual edge goes to PS3. So there you have it - if you want the most important game this generation, why the heck would you buy it on Xbox 360? :P