No se si lo han posteado ya pero extraigo de IGN Insider:
"Graphics
Burnout Paradise is an amazing technical feat and looks great on both systems. The absence of loading screens, the rock solid framerate, the detail on car models, and the sheer speed at which everything is rendered is a stunning achievement. That being said, there are some small but noticeable differences that make the PS3 the clear choice in this category. You'll notice that while colors seem a little more subdued on the PS3 (we were playing with identical screen brightness settings), there is generally a bit more detail in the environments, especially in town with lots of objects being rendered in a comparatively small area.
Likewise, the draw distance is a little cleaner and more distinct in the PS3 version. The 360 version also has a fair amount of pop-in, especially with distant objects. I also found cars in traffic would sometimes add-in a last layer of texture detail as I got closer to them in the 360 version. There's some pop-in in the PS3 version too, but generally speaking, it's much less noticeable, restricted to a tree or some bushes in the background. The PS3 had the slight edge in lighting effects in as well, with some interesting refraction or glint happening at almost all times on your car model, while the 360's lighting seems a little less pronounced.
While both versions of the game run at rock solid framerates, it did seem like the PS3's was a little bit faster, running silky smooth at high speeds. The 360 version is an admirable production but the framerate does seem slightly slower than the PS3's, with an occasional hitch at high speeds. This isn't something to be too concerned about as both version look and feel great at top speed, and most people probably won't ever see a difference unless switching back and forth on an HD monitor. Also, some people may actually prefer the overall look of the 360 version because colors seem to pop a little more brightly from the screen, but otherwise, the game is just a bit more detailed, smoother, and better lit on the PS3. Both versions really do look great, but the edge has to go to the PS3 here. "
En resumen que la versión de PS3 es mejor en este apartado y en el overall también pero dicen que hay pocas diferencias.
Overall
"So which version of Burnout Paradise deserves your hard earned money? While it's a close call, the PS3 one ultimately delivers an experience that's just a little sharper, faster, and with the extra control options of SixAxis, offers an experience that you won't quite match on 360. The 360 version is excellent in its own right and, if you're not a multi-console owner, you should have no problems getting the most out of the game. If you do have the luxury of choosing consoles, the PS3 has that little extra boost where it counts. Some people might prefer the slightly brighter coloration on the 360, but for most, the added environmental detail, ubiquitous lighting effects, and slightly higher frame rate on the PS3 deliver just a little better overall experience. While we've seen lots of third party games suffer when ported from 360 to PS3, Burnout Paradise is clear proof that, when designed from the ground-up for multi-core processing, the PS3 can definitely compete with any other console out there. "
Too lazy for translating :=)
Para que no digan que IGN siempre tiran para Xbox 360, hacen VS de casi todos los multis y suelen decir lo que hay tal cuál al menos en este tipo de artículos