Without perfect sight, I was miserable. Although I could kind of see, it was just terrible before I got glasses...

Sight is most important to me.

Without sight I wouldn't be able to see the beauty of nature, the universe, the faces of my most closest loved ones. I couldn't live without being able to see.

Sight, touch & hearing are all so important >u<

Sight would seem the most obvious. But I see so many blind people walking the streets who seem like they don't need their vision at all. So I'm going for your hearing on this one. Being deaf would be the most difficult thing out of these options. Also the most dangerous. Imagine a deaf person trying to cross the streets, accidentally not paying much attention when a speeding car is about to pass. Man....I don't like to think about stuff like that.

Sight for me~ The world is beautiful~! Not being able to see the face of the one I love, my family's faces, my friends, everything that makes the world beautiful.... I couldn't live without my eyes.