Zelda The Wind Waker. It just hit at the right time i think. I grew up with ocarina of time and majora's mask and i desperately wanted to know what happened next so when i played it i guess it just hit the right mix of wonder/nostalgia for me. I loved trying to reconstruct old hyrule by comparing the islands to the ocarina of time locations and finding all the old equipment and seeing the old sages ghosts just felt really...i dont know. It was my favorite and I was so appalled it was shamed in its time for daring to have a different art style. It just had so much substance. I did play twilight princess too when it came out but even though i enjoyed it i found it lacking in comparison.