Sony will say something like "Killzone 2 is only possible on the PS3" but they won't openly insult their competitors. They have a bit more integrity than that it seems.
But then Microsoft comes out with statements like
"Our exclusives are better"
"Xbox 360 will greatly surpass the PS3 this year"
It's all so childish and stupid
To me it just looks like another small time game website attempting to get into the limelight...
It looks pretty obvious that these guys just wanted some controversy. They had to look for bad things to say, they don't really think that they're bad.
I love how people are just saying "lol desperate" and then leaving it at that without elaborating with why they disagree.
Take-Two stated that it was supposed to be multi-platform from the start, but it just never happened that way.