Boy, this would be a
really inappropriate question to ask in real life. :O
Anyway, some of my favorite Zelda races are:
Sheikah - I love the mystery that surrounds them and their distinctive ninja appearance. Their eye and teardrop symbol is also very distinctive and memorable.
Zora - They always have interesting designs and fill the role of water-dwelling people well without being too close to stereotypical mermaids. Zoras Domain is also one of the most beautiful environments in both Ocarina of Time and Twilight Princess.
Kokiri - Forest children who never age are an interesting concept that connects the series with traditional fairy tales. It's a shame they aren't portrayed more often in the series.
Kikwi - Pretty much the most adorable things in the history of Zelda!
and of course
Hylians, since they're the race everyone's favorite hero comes from.
I would include the
Gorons on this list, but they're overused way too much in the series, if you ask me.