I friend at work had part of his right forearm missing. He used the traditional metal gripper hook. I've seen this guy peel an orange with it. Play the guitar and he held the pick in that hook. It was an amazing and versatile device. I asked him about getting a plastic hand and he said they were useless. Mostly for people that wanted the look of a real hand, and were willing to sacrifice function for attractiveness.
This USA Today article from 2005 says pretty much the same thing. The injured soldiers prefer the metal hooks because they are so much more functional. There's no batteries to mess with and the hook doesn't require much maintenance.
Has anything changed since this 2005 article? Are the metal hooks still considered the best for functionality?
Love the picture of the guy with the hook holding a knife. That's one bad ass marine.
"I remember when I first came back for rehabilitation, they were touting the myoelectric (battery-powered) hands as the greatest innovation. I was so disappointed," Wright said, describing how the hooks are much easier because they don't fall off his arm, are supple enough to "pick up a paper clip" and are much more reliable than battery-powered limbs.