I had about three. I voted for the Song of Haling, but if this was multiple choice, I would have gone with Song of Time (All three) and the Song of Storms.
I'd say Saria's Song is my favourite of all, but if I could choose one from each game I'd say Oath to Order for Majora's Mask. I don't know why but I've always liked that song, much more than Song of Healing, although I do like it too.