I think it's time to call it, and I know it's my turn for a topic. To that end, I choose...
Mario, Link, Mega Man, Pikachu, Samus Aran, Starfox, Donkey Kong... I couldn't tell you how many hours I've spent with these iconic characters (I really don't think I want to tell you).
Even if you didn't spend your entire childhood educated with an NES controller in your hand, I'm sure you recognize at least one of these guys, right?