The type of camper you end up getting is strictly a personal choice. We went from tent camping, to a pop-up, to an 24 foot TT, 31 foot TT, 34 foot TT, and finally a 41.5 foot 5er. Each one got longer, heavier, taller and bigger. And each one served it's intended purpose at the time we had them.
We started tow vehicles with a Chevy Lumina Mini Van, then a 1500 Chevy Suburban, then a gas 3500 dually long bed crew cab. Then a 3500 dually long bed crew cab diesel, and the last was a 3500 long bed crew cab diesel.
At the time we purchased the first one-ton dually, I thought we were getting too much truck. But in the end, the decision to switch over to the biggest, baddest, most ferocious towing power truck we could even remotely afford proved to the be the right decision. Getting the "beast" first, gives you LOTS of options, now and in the future. Plus, I can tow more than just the travel trailer or the fifth wheel camper .... which I have.
Regarding tow vehicles??? You have to figure out what will work best for you. It's VERY VERY important to have a good, heavy, solid, dependable truck that is capable of towing the Space Shuttle backwards when the shuttle ignites for space! BUT! It's also important to determine what you will use the truck for when NOT towing. For us, a second smaller truck was our answer. I wanted the towing capacity and that is the PRIMARY reason for the "beast!"
You have to make those choices! No one else can do it for you.