I would be miserable without sight for a year. That's much too long to go without being able to read! Hearing is almost as important to me, so that's out of the question too. With three pups, it's crucial to be able to smell (just in case there's an accident), and I'd hate to have to go for a year without being able to touch things and feel what I'm touching, so I think I'd probably choose to go without taste, although I'd definitely miss potato soup.