The Exclusives. Best in the business.
- God of War, Gran Turismo, Killzone, Ratchet and Clank, Uncharted. Nobody beats Sony.
Plus they add new franchises each generation. Last Gen we got God of War and Ratchet & Clank (among others). This gen we've gotten Little Big Planet and Uncharted (and more).
Sure Nintendo has Mario and Zelda but they haven't many great new franchises since N64. All I can think of is the "Wii" series, Viewtiful Joe (which is now dead), Pikmin, and maybe a few others.