I would have to say Zelda on the N64 also because of the wow factor at the size of the map and the fact you had ur own horse
Id say Rockstar pretty much nailed it on the head when they turned their most famous creation into 3D, i remember walking out my garage/apartment for the first time, was priceless:D
Edit: Just remembered you can fish in Zelda as well, now that was cool! i used to be in there for hours just trying to catch the biggest fish, anyone else try that? im deffo gonna need to dig out my N64