Check out the Wisconsin Dells area. So much for the kids you’ll never get to it all. Plenty for the wife, and several good lakes near by plus the Wisconsin River. Trust me no one will get bored.
Bailey’s Resort on Kabekona Bay is a nice place for a family to spend a vacation. A nice beach for the kids, off the main lake and the owner knows where to find the eyes on Leech. Drop me a PM if you need more information.
If you are looking for a resort for the family on Leach Lake, Big Rock Resort is a nice family place (bigrockresort.com). Our family has been going there for the past 5 years and our kids love it. This is not a big fancy place (with big fancy prices), but more of a mom and pop shop.