pscaravan - Looking at most of the posts here it is little wonder that you are confused.
I have owned a pop-up, then a hybrid travel travel trailer, and now the trailer in my signature. I have experience in pulling all three with vehicles ranging from a 1993 Hyundai Elantra, through a 3.8L V6 FWD Dodge Grand Caravan, to a 3.3L V6 Hyundai Santa Fe FWD, to the vehicle in my signature. I have pulled these RVs (except the current one) from Texas to Canada and back as well as regular camping trips.
PM me if you want specific information based on actual experience, but before you do please go to an RV show or at the very least a dealer or three and see what the smaller RVs are like.