I need more information. Which do I like better? Which would I rather be? Which one tastes better? My answer for which would I rather get murdered by is different then which I would rather have in my back yard.
I'm assuming it's which you like better, although I think my answer would still be "giraffe" for most of the questions you suggest. Apart from the back yard one, a zebra would probably be easier to deal with in that situation.