Backwards Capability
Xbox 360 and PS3 have compatibility issues. The Xbox 360 requires you to download updates, while the PS3 no longer has backwards capability (with the exception of the early 20GB and 60GB models).
Online Service
The PS3 has free online gaming service available. Microsoft charges an annual fee to use its web features for the Xbox 360.
Game Controllers
The wireless SIXAXIS controller for the PS3 is motion sensitive and rechargeable by plugging it in to the console. Wireless controllers with the Xbox 360 require batteries, while their wired versions can plug into a PC.
Price
The cost for the PS3 averages $400 to $600. The price for a base model Xbox 360 is $200, while the price is $400 for the elite version.
Blu-Ray
A Blu-Ray disc player is included with the PS3, giving it up to 50 GB of space to store games and movies with HD-quality graphics. The Xbox 360 utilizes the standard DVD format (4.7 GB).