When people compliment you on your child's name, do you believe them? I always wonder if they are just being polite. We get lots of comments about Jo's name, most of them very nice with the occasional "oh, that's ... different!" or "oh, that must be a family name!" accompanied by an overly bright smile. Those I know are fake. The rest I usually believe are legitimate, but maybe they're lying too. I don't care because I love her name, but who doesn't like a little external validation now and again?
Opie's name is way more common (way way, much to my chagrin; husband prevailed on that one) and we get many fewer remarks. When we do, it's "That's my nephew's/friend's/neighbor's name" and not much else. The nickname, on the other hand, gets a lot of attention. And even a whole entire blog named after it.
Edited to add: I really don't have any qualms about Jo's name, or take any fake comments personally ... I'm more wondering what your take is! On Jo's name. No, just kidding. Your kids' names, and reactions thereto.