I have always been a big video game buff. I have owned almost every video game console to ever be released. From the Atari, CalekoVision, Sega Master System, SNES, and plenty more.
I could not tell you which was the best ever to come out, in all honesty I believe that this is really just a matter of preference. I would have to say that my favorite of all time had to have been the Sega Genesis though. It was the one that I grew up playing so that is why I love it so much.
After that I would have to say that my favorites would be the Sony PlayStation 2 and the Xbox 360, which were both the gaming systems that I played for most of my adult life. Now I really do not play games as much as I used to but my kids do and the game of choice seems to be the Nintendo Wii. They can play that game for as long as I will allow them to and never get tired of it either.
I will say that the Sega Genesis console had to have some of the best games that there was for the time. And after all that is what makes a game console good is the games that are available for it. Sega had some great titles, Streets of Rage, Altered Beast, Kid Chameleon the list could go on for days. I really do have to say that they were my favorite coming up but there really is no clear cut winner in this battle, as I mentioned it is really all just a matter of preference.