I agree about the bunks. They are great when the kids are under 10, but then they're too short, too claustrophobic, etc., and just end up as storage space.
Personally, I think hybrids are perfect for families for camping. You've got a nice living area and at least two large beds that open out. Add a tent and all the kids will be set. Plenty of room and when the kids don't want to come, you can leave one side closed.
If you're RVing (as in going to private RV parks), then that's a different story. Many won't let you do a tent, so your limited to the trailer.
When we were little we camped in a truck camper. Parents slept in the cabover, sibling and I slept in the cupboard bunk above the dinette, and younger sibling slept on the loveseat. When we got older, we three slept in the cabover and parents slept on the dinette.
So, my personal feeling is don't worry so much about the kids "not having their space". If you're camping, they can have all the space they want outside. Heck, we were outside unless we were sleeping - rain or shine - and not one of us has bad memories of camping trips.