My housemate has both the 360 and PS3 (and the Wii, but that's gay). Hands down, the PS3 wipes the floor with the 360. The graphics in particular have so much more definition on the PS3. The best way for me to compare the consoles was to play the same game on both (in this instance, COD4). PS3's version better. PS - i don't have a console of my own, so my opinion is pretty unbiased
...however, i strangely prefer the Xbox controllers, seem a little less complicated? That though, is really down to opinion.
PS3 has free online play too
