We had a 20" trailer just like the one in the first set of pictures that were posted. While we owned that one we decided what we NEEDED in our second RV.
1. Walk around bed. The corner bed is a real PITA.
2. More clothes storage (actually more storage in general)
3. More counter space in kitchen and an oven
4. Dining table and chairs instead of booth.
5. No slide.
We looked a lot and found a used Prowler that met every need. It is 26' long. It was owned by a extremely meticulous person who did all of the maintenance and made several upgrades. AND it fit our budget it was only $4500.00.
You need to decide what you need and establish a budget, then the hunt is on.
jesseannie