Some, not all, but some people have said that the xbox 360 is a better system because it sold more units than the playstation 3. But they are forgetting the fact that the system had a year head start before the wii and playstation 3 were released. So of course it is going to have more sales than its competitor because it had a one year advantage. If the xbox 360 was released around the same time as the wii and playstation 3 (as it should have in order to decrease the probability of having consoles fail), then the playstation 3 would have been second in the sales rank and people wouldn't have wrongly accuse it for not outselling the xbox 360.
http://vgchartz.com/hwlaunch.php
I'm not here to proof that the xbox 360 is a bad console, I'm just tired of people saying that the playstation 3 is terrible because it is last (like the gamcube). Hopefully this can silence xbots about sales.