I would look at both Fifth Wheels and Travel Trailers. You don't jump from camper to camper a lot so it seems to me that you owe it to yourselves to check out all your options. Fifth wheels are shorter going down the road and they tow better, but they tie up bed space, tend to cost more and require more truck. One isn't better than the other, it just depends on your priorities.
Toy haulers are another option as most can be had with a pair of drop down queen bunks in the back and a main bedroom up front. They can be had in TT or fifth wheel form. They tend to run a little heavier than camper trailers but are better suited to non-hookup camping with larger tanks and on-board generators. This is the direction we are planning on taking with our next one.
