Nintendo has stood the test of time, targeting kids and then hooking those kids as adults. And Nintendo has so many great franchises, Mario, Smash bros, star fox, legend of zelda, and let's not forget Pokemon. However, Sega has Sonic and .... Ristar? Let's face it, Sega has been mostly dead for a while now, and they're just clinging onto nostalgia for sonic. Nintendo will never go bad unless they stop making great games, or the universe runs out of 10 year olds.