Couldn't possibly rank them all (have played less than half, for sure), but hardly any videogame memories will ever live up to playing OoT when I was in the 4th / 5th grade. The world felt impossibly open back then...adventured for hours with friends, swapped secrets, annotated guidebooks, etc. Even the main Hyrule "field" - which now seems comically tiny - felt like an expanse waiting to be explored. If only for nostalgia, it will always be OoT, although most seem to agree it was a bit of a landmark game, too.
Wind Waker is also pretty great.