I kind of picture Kenny as a black boy, thanks to the Cosby Show, or a character from South park. I don't really like it. Or Kenneth either. I especially dislike KEN as a nn. Andrew I love though! AndrewKenneth is a little nicer, I think. :/
I dispise the nickname Ken, too. I'll consider AndrewKenneth but I'm not a big fan of the nicknames for Andrew and as he gets older in school, people will probably start calling him Andy or something and like I said, I don't like tha =/