I understand about large and small. I also want as small as I can get, yet still have enough room in it for DW and I to get around in, without getting in each other's way.
For us, we hit a happy medium this time. We sold our Skyline Koala 21CS (24' bumper to hitch) and bought a new Jayco Jay Flight 23RB (27' bumper to hitch). The 23RB fits our needs.
The 21CS only had one place to sit, a jack knife sofa on a shallow slide. It was directly opposite the galley. We kept getting in the way of each other.
The 23RB which does not have a slide, gives us a large wardrobe in the bathroom which will be needed when we go cross country again. it has a jack knife sofa past the end of the galley, and it has a dinette which is opposite the galley. We now have plenty of space for the two of us.
And it's not too long for most national parks, etc.
Any RV is a compromise. Each person must get the RV which ticks off the most "must haves" without having any "deal killers". Any person must take stock of how they will use the RV. Also, they must determine exactly what their current TV will actually safely tow.