I bought the Honda EU7000i. I have my own well so I needed the 220v to run the well. I also used it quite a bit tailgating before moving to the RV Village. Its nice and quiet, trouble free, and fuel efficient. If I were to buy a generator for just the rv I would have bought a smaller one that is lighter making easier to load in the truck. If I were to but one for just the house I would have bought a bigger one, had it permanently installed, and run on LP.
Other question to answer is how are you going to connect it to your electrical system at home. There are some ways that work but are not safe. There is also a right way to do it. It is also illegal to run a generator in a way that will back feed the utility, for the safety of the linemen. I had electricians install a transfer switch on my main panel. Cost a little money to have them do it but its works pretty slick.