PlayStation 3 maker Sony has thrown the latest ball of mud in the console war, claiming that competitors Microsoft and Nintendo are merely "peddling add-ons" to keep up.

While Sony said that "the Xbox 360 and Wii offer a set of features in their own right," the company provided the above chart, stressing that "when you take a look at the feature offerings side by side, there is only one true winner in delivering total value and price."

The chart compares the lowest-priced offering from each manufacturer. Two other Xbox 360 models are available--the $299 60GB Pro, and the $399 120GB Elite--with a $499 PS3 packing a 160GB hard drive. Curiously, Sony did not discuss game lineups, which some consider to be a major factor in the purchase of a video game console.

With the holidays now behind them, the PlayStation 3 has sold roughly 20 million units worldwide since launch, while Microsoft says the Xbox 360 now tops 28 million. Before the holiday season kicked off, Nintendo's Wii had sold about 35 million units.

In its mailing to the press, Sony concluded:

The PS3 is the perfect example of a product featuring superior technology and a sophisticated design creating an ideal all-in-one entertainment product. The Xbox 360 requires additional money, multiple upgrades and additional external devices, putting a burden on the wallet and adds clutter to the entertainment center. And the Wii's lack of enhanced features comes at the expense of a comprehensive entertainment solution. So as PS3 continues to evolve without the need for additional parts or expenses, expect the competition to continue peddling add-ons in an effort to keep up with the Jones'.