Welcome to the Forum! Thanks for coming before purchase!!
It seems all of your options are still open, so I suggest looking at them all. As you look, some types will eliminate themselves, some floor plans will scream NO while others will be more inviting.
The #1 most important factor in ANY RV choice is floor plan. Do you both love the floor plan and will it work well for you.
State and National Parks are beautiful campgrounds, BUT most are older with smaller camp sites. Many can handle a bit bigger campers than 30 ft FW. Others can not. There are almost always private campgrounds nearby that will be able to accommodate you. Also note that few National park campgrounds have full hookups. Many offer electric, but may not offer 50A service. Especially out west, very few offer water or sewer hookups. Some State Parks offer better amenities, others do not. Most private campgrounds do offer full HU.
There are many discussions on Class A vs FW. If you currently own neither, the cost of a decent used F350 diesel and decent used FW will run $60K - $100K. That is similar to the cost of a decent used MH.
It is generally agreed that MH are better for travel because all the "necessary" areas are accessible without getting out of the MH. This includes the fridge, toilet and bed. They usually have a toad attached, which is nicer for local travel than a big truck, if you are not used to driving one. If you have mechanical problems, your house goes into the shop.
FW are nicer for living in because they generally have more / bigger slide outs which provide more inside living space. The truck is your local transportation. If you have mechanical problems, most Ford dealers can work on your truck while you are in a nearby campground.
With all that said, more full timers have Class A rigs than FW.
Do lots of research and ask lots of questions!