Personally the original nintendo did it for me. It was the one that got me addicted enough to start a library of games for any system i own. Currently however my love goes all out for the PS systems, though any system that has a vast library of RPG/Adventure games gets my vote. Nintendo still has a place in my heart though, with harvest moon and donkey kong games. Not to mention several rune factory and pokemon games as well.

Last of us.....epic!