xbox 360 worthy launch titles

So what initially strikes you as launch title worthy for the 360, for the sake of being next generation, creative, ground breaking (are these all the same thing more or less?)?

I own:

Kameo
Condemned; Criminal Origins
PGR 3
Call of Duty 2
Perfect Dark:Zero
Gun
Dead or Alive 4 (not really a launch title, but close enough. I reserve judgement for later)

For the xbox 360, these launch titles represent:
Call of Duty 2 (sure the genre is old shoe, but this game is so well-crafted)
Condemned; Criminal Origins
Kameo (sort of, at least in terms of graphics and originality)