There are many options available. You do not mention the ages of your children. I will tell you our experience and our reasons. We started out about 11 years ago looking at towables. We did not look at 5th wheels as I have o regular use for a 3500 series truck. I owned a Suburban that could tow maybe 8500 pounds comfortably. I wanted a couple thing. I wanted to be able to stand up, I am a bit over 6-1 and many trailers had me walking around the overhead lights. We wanted to be able to have our daughter go to bead while we sat up and not have to move her later. This meant two bedrooms. Trailers rapidly grew in weight to sizes I was not happy with. We found a Winnebago Sunstar 33K Bunkhouse. It is an ENTRY level unit, it was noisy but it actually worked out well for us. Two bunks, each with a DVD player, a queen for mom and dad. We towed our Jeep. Traded this in for a second Winnie, Sunova 35J, nicer finish, quieter. We kept this for about 7-8 years. Traded in this past summer for our third Bunkhouse rig, a Tiffin 38QBA. Stacked Washer Dryer, Bunks that can convert to a hanging locker, Much storage, Multiple TVs, 4 door frig, Diesel, Air Ride and brakes.
Consider the time you spend doing each activity as you travel, Sleep? 6-9 hours. Bathroom activity, 1 hour total? Actual driving? maybe 8 hours a day but how many days in between parked? Private space? Bunks give the kids a 'personal space' all their own. You have a room to yourself as well. We opted for the largest 'LIVING ROOM' we could, bedrooms and bathrooms aren't where you spend your time. You need/want comfortable seating in the main can=bin, you want easy viewing angles to the TVs, a place to sit and eat. Here I'd probably opt for a table and chairs if it had been available. We have a dinette and none of us are small so I have a collapsible table that I set up for dinner. So far I have not seen an RV with a big enough table. Snack tables address this as well. Do try to spend an extended time just hanging in a rig before you buy. A couple hours is not too long.
The nice part of a DP is that you are all together while driving, but you can stretch out, sleep, watch TV while underway. You can stop in a rest area in the pouring rain, use the facilities, cook, eat, sleep and get underway again without going outside. When you get where you are going you can unhook your car and drive a smaller easily manageable vehicle around your destination, you aren't stuck in a SuperCrewCab 28 foot long monster! Parking on main street or in a roadside attraction is simple.
