Ranger Shadows Almia Xbox

what ds,psp, xbox 360 game should i buy ? ? ?

mario kart
DS:
pokemon ranger shadows of almia
nintendogs chihuahua (already have labador)
wario ware touch
dogz pack
kingdom hearts
mario etc..yoshi things
PSP:
rockband unplugged
marvel ultimate alliance
daxter
marvel nemesis
family guy
hammy goes nuts
XBOX 360:
mortal combat dc universe
fifa 09
transformers
PICK ONE FROM THE LIST PLS
those are all the games i want but
dont know which to get first
i dont want any other gmaes

DS:
mario kart
wario ware touch
kingdom hearts
PSP:
daxter
XBOX 360:
mortal combat dc universe

Ranger Shadows Almia Xbox