Def Jam Rapstar (PS3) vs LEGO Rock Band (PS3)

Def Jam Rapstar captures the essence of what Hip Hop is all about: the music, the battles and of course...the swagger.
The ultimate emcee experience for video game consoles, Def Jam Rapstar is the only music game that focuses exclusively on Hip Hop. With more than 40 of the greatest Hip Hop songs available at release, Def Jam Rapstar allows you to be the star: by rhyming, using your console camera, and uploading your video to the fully integrated Def Jam Rapstar community at www.defjamrapstar.com. Def Jam Rapstar also offers you the ability to freestyle over tracks by some of the hottest hip hop producers and upload your freestyle performances for the world to decide how good you really are.

Lego Rock Band is a music video game and part of the Rock Band series developed by Harmonix Music Systems, but also incorporates elements from other Lego video games as developed by Traveller's Tales. The game, as with other games in the Rock Band series, will allow up to four players to use instrument controllers to play lead and bass guitar, drums, and vocals on a number of rock music songs. In addition, aspects of building with Lego bricks are incorporated into the game, allowing players to customize their avatars and other band assistances, and include additional Lego-themed gameplay modes.