OoT feels like the obvious answer, but I almost feel like voting smash because it started a great series imo. where as OoT was just another entry in an already great series.
I still went with OoT though, because I still go back and play that sometimes. only other 64 game i've replayed in recent history is star fox 64
Cid- "looks like that overgrown lobster just got served!" Bartz-"with cheese biscuts AND mashed potatoes!"