Hearing. It's the only thing I could lose that wouldn't make life unbearable. It would suck, it would suck really bad, but a) I need sight to draw and without it I couldn't continue doing architecture, b) I need touch for pretty much the same reasons, being able to hold pens and stuff without breaking them and also the idea of never being able to feel any stimuli feels really depressing, and c) without smell and taste, everything I ever eat will pretty much taste like ashes, and eating ashes for the next 50 years would suck.
Never being able to go to a concert or listen to music would be a huge loss, but it's probably the only option that wouldn't make me want to jump off a building.
Never being able to go to a concert or listen to music would be a huge loss, but it's probably the only option that wouldn't make me want to jump off a building.