Looking for arcade games and lots of light amusing shit, get an xbox.
Looking for single player RPG or racers, get a ps3.
It all really boils down to what your interests are. Xbox gets a lot of DLC early, as well as its endless list of community games and arcade games. And ps3 is a bit more powerful for full titles and long single player expiriences. You can get custom controllers for either console to fit whatever style of controller you like best. ps3 is probably cheaper to stay entertained as well.