Crackdown is sweet. I have forgotten to play it in the last few weeks. But it is definitively one of my favourite Xbox 360 games. The next GTA looks also promising and Viva pinata was (is) also great.
But the games I really like the most are Xbox Live Arcade games. Uno is fun, and Pinpall FX or Assault Heroes.
I have heard that they are going to release the old Prince of Persia (with better graphics) for XBox Live Arcade on 30th May! That's going to be one of my new favourites. I wonder why no classic jump'n'runs (like Mario or the old Sonic series) are released
for the Xbox Live Arcade...