We did downsize from A to B and love it. My advice would be to decide what you want to do and then look at what is out there. For instance, do you want to overland, winter camp, type of battery, solar, heating system, generator, etc.
Seeing that you are in WI, you might like to have one that is good for winter camping. I do wish we have been able to get a 4 season like the Winnebago Revel, but the layout is not that good for someone with disabilities. We ended up with a Galleria from Coachmen and love it. We went cross country and back, towing a 16 foot trailer (AK to NY and back) and it worked really well.
I had been thinking of converting to Lithium batteries, but after last winter decided not to do so. Too cold up here in Alaska. If we had a place to plug in and run a heater yes.
There are smaller C RVs out there that are excellent too. Good luck with your search.