Of the series where I played all or most of them.
Mario-
Super Mario Brothers 3
Mario Kart-
Mario Kart 64 but I think the Wii version could surpass it the more I play it.
F-Zero-
F Zero X (is that the N64 version because that is my favorite)
Star Fox-
Star Fox 64 (I think this is the one everyone can agree on although the original is great too)
I'll come up with something better eventually...