A few years back the DW and I made the worst decision of our RVing lives. We wanted to down size from a 35' 5th wheel to a smaller Class A. We ended up liking a 29' class A that we thought would do the job for our travels. Boy were we wrong! It really came down to lack of storage for long term travels.
We started looking for Class A's that we could be gone months at a time with storage. Thats when we ended up with the 38' DP and have not looked back.
My thoughts for you are look at storage both inside and out. Look at what you can get to with the slides "in" , as DW likes to use bathroom while traveling getting to the frig. that kind of thing.
Good Luck