Everyones needs are different as yours are most likely different than ours, but this is what we found.
We started out with a 2017 17' Clipper with large bath and walk around bed (so no climbing over each other), but soon realized we need more space!
We traded the Clipper in on a 2015 26' Keystone Premier which is perfect for us! It still gave us a walk around Queen bed and large bath, but it also gave us our much needed larger living/kitchen space.
17' Clipper:
26' Premier: