Recreational doubles are ok. I've done that, but a toyhauler is the ultimate way to go. I realize it has a high up front cost, but it simplifies things alot - including backing up and lack of parking area on sites.
As far as fitting a family goes, it doesn't get better. I have three little kids, a 80lb Lab, and they all absolutely love this thing. Versatile is right. Most people don't realize it's a garage, a bunkhouse, and a high end trailer combined (depending on model). I take my parents & my brother's family a couple weekends a year, and we can sleep 10 of us in real queen size beds comfortably. It doesn't get much better than that.
