This is a really interesting question. I really think the answer is a personal one - and depending on your situation and plans and needs- that heads you in the direction of picking a travel trailer or camper or fifth wheel or motorhome - that will be right for you and give you the life style you want. For my husband and I, this had been a 4 or 5 year journey - and over the course of this time, we changed our minds many times - even as far apart as wanting a 38' fifth wheel to a slide-in camper. Talk about opposite ends of the spectrum.
Finally, we decided on a 21.5' Fun Finder travel trailer. I didn't want anything too big, yet I wanted certain comforts. And when you opt for a smaller trailer, you have to make concessions on the floor plan. For me, the floor plan was important. If this is your home and you have the opportunity to buy it new and have choices, this is certainly an important considersation. The separate bedroom area was important to me.
Our big decision was either an eating area booth or a couch with a table you could set up in front for dining.
We opted for the couch - because we felt we would be eating outside more often. Our trailer also has a full outdoor kitchen built in - one of the things my husband loved - even though he never cooks. Underneath storage, an awning, extra outdoor storage, outside TV hookup - and all the extra amemties were nice too. We purchased our trailer from a dealer that has been around forever and we got an even better deal buy purchasing at one of the RV shows. At the RV show, we had one last opportunity to look at competitors - and yes - many of the floor plans were so similar - but in the end - this trailer felt right to us and we loved it. We took our time. And in the end, as I said to my husband, we can always trade up.