I'm afraid i'm going to have to answer your question with a question. In what respect are you asking for comparison? Flavour? Intellect? Sexual favours? Even a scabby horse tastes better than a donkey, but this fades into insignificance when character is considered. A donkey is one smart, loyal, dogged, cute four-legged mo-fo and beats the horse hands down in any game of farm yard top trumps.