It's amazing how effective Sony's "PS3 power" PR has been.

[aavidbacon]

This is not only true, but the main selling point of the PS3. Normal, "casual" gamers, people who likes games, but not enough to talk or get informed about them, have this image of the PS3 being more powerful.
This is why they buy it at close numbers to the x360, despite the price difference. This is clever marketing and a thing they should stress more and more, cause allows them an edge till they are capable of levelling the price.
If or when that happens, this perception(PS3>x360) can assist the PS3 selling more than x360, despite producing the same graphics and having more or less the same games.