Well, Nintendo is going to show only the games that are coming in the next 12 months.
Sony has show the big games coming in the next... 2/3 years, they are only promises by now, most of them don´t even have gameplay to show, and none of them are coming in the next year (except the multiplatforms that we already knew)
Is pretty hard, this is: Tangible games for the next year VS Promises for the next 2/3 years.