If I had to choose between the loss of sight and the loss of hearing, I would definitely choose hearing.
I woke up blind one day last year due to clots causing an arterial occlusion. That was the worst day of my life. I couldn't even dial 911, because I couldn't see the touch screen on my cell phone.
Thankfully, I regained most of my vision, and only suffered a 5% loss of peripheral vision... but it made me appreciate vision, and gave me insight into what a blind individual experiences.
BTW, I dumped the touch screen cell phone as soon as I could. The number pad on cell phones always have a "bump" on 5. I encourage everyone to have a phone with a dedicated number pad. In a worst case scenario, you can dial without seeing.