Tom, take this with the spirit intended. These are questions you should be able to answer yourself and if you can't, you have alot of work to do.
It took us just over two years of note taking, listening, reading, researching, show shopping, and Saturday afternoons just kicking tires before we finally decided on our current 5'er (see sig)(we previously had a TT for 4 years). But after nearly 10 years our 5'er is still the perfect 5'er for us. FWIW: Subscribe to every RV magazine you can find; read, read, and read some more regarding the fulltime subject; spend time regularly reading all of the different RV forums; and be ready to discover regardless of how much effort you placed into doing your homework, you may not hit the nail on the head as to which RV is best for you on the first try. Be patient, thorough, and do your homework and you'll be able to answer most if not all of your own questions.
Happy camping!!! See y'all down the road!!!:)