That is not an easy question..... I love my additional counter space the most. The fireplace is nice and I love my recliners. It is so much more spacious inside and I have all of these lovely windows to see out of now. Then there is how much easier to hook up and tow. Oh I could go on and on here. I do miss having a grenade bed for dd with the bunks but everything else more than makes up for it!
After 18 years with an Eagle 215SD and having to crawl into and out of the bed, being able to stand up in my bedroom is one of the favorite things on our new FW. Also like the large rear and side windows that allow a whole bunch of light into the FW.
Residential Amana fridge with the icemaker, I'll never own a fiver without one again!! Next is the TONZ of storage my Daydreamer has, she's a real full-timer!!!
My favorite feature is the generator. Power failed at a campground we were at and as soon as it did, we switched to generator. 3600 watt Onan propane fired and we had A/C. Got a lot of looks from other campers with a lot more expense trailers who did not have a generator. It is also good during hurricanes, etc.