For awhile now, Sony has boasted quite a bit about the recent success of the PS3 over its number one competitor, the Xbox 360. From sales figures, games line-up, to the success of Blu-ray over HD DVD in the format war, Sony seems to be pretty happy with where its black behemoth is at. All the while, for the most part Microsoft has kept pretty quiet not returning many of the PR jabs, instead focusing solely on the success the Xbox 360 has had.

But looks like Microsoft’s Aaron Greenberg has decided it was time to go on the offensive again. In an interview with Destructoid, Greenberg targeted the PS3’s 1080p support, Blu-ray, PlayStation Home, PS3’s supposed lead in Europe, and Killzone 2.

“We have been fighting Sony’s promises from the day we entered the market. Three years ago at E3 they showed what PS3 games would supposedly look like with the Killzone 2 video, that we are now learning will ship four years later. That means that we will have shipped Gears of War and Gears of War 2 before they can even get Killzone out the door,” Greenberg stated.

“Think back to GDC 2007 when Sony promised to leap ahead in online with the Sony Home unveil. Here we are two years later and multiple delays for a product that appears to have little to no buzz. Where are the achievements? The friends list integration across all games? Where is the long-promised video store?

“Where are all the other products using and networking with their Cell chip? How come Blu-ray did not result in better games? What happened with Sixaxis and rumble? Where is the complete 1080p game library we were promised? If Blu-ray, as they said, would be such a catalyst to PS3 console sales, then why have PS3 sales over the past couple months not seen any lift since the format victory?”

Greenberg then went on to say that the Xbox 360 “is leading this generation because it has sold more consoles, has more games and exclusives as well as the leading online service and community”. He also set the record straight by adding that the Xbox 360 has a 5 million unit lead around the world, which by his calculations is double the PS3’s in the United States and 1 million more units sold in Europe, which is contrary to remarks made earlier this week by Sony Europe boss David Reeves, that the PS3 has outsold the Xbox 360 in the region.

Greenberg concluded by saying “The days of Sony snowing the consumers and the press are over, I think the pressure is now really on them more than ever to deliver on all of these promises.”