This has been disscused plenty of times already.
The widely circulated conclusion is that the PS3 install base consists of a set of consumers with a very broad range of tastes. While the 360 install base is more focused, ie. there is a larger 'shooter crowd' in the 360 install base.
The 360 also has a much larger install base in NA, where gamers are more likely to make day-one purchases then their European counterparts.
As for internet hype, a few outspoken posters on a website do not correctly represent the views of the average consumer.
^this. I don't know how many times we have to reiterate the same thing again and again....
"Dr. Tenma, according to you, lives are equal. That's why I live today. But you must have realised it by now...the only thing people are equal in is death"---Johann Liebert (MONSTER)
"WAR is a racket. It always has been.
It is possibly the oldest, easily the most profitable, surely the most vicious. It is the only one international in scope. It is the only one in which the profits are reckoned in dollars and the losses in lives"---Maj. Gen. Smedley Butler