Well, I'll nibble.
Our last travel trailer was a 2013 Keystone Outback 298RE (rear living room). It had 2 opposing slides in the rear and a huge window in the back. Bedroom was up front with kitchen in the middle.
Of the 3 travel trailers we owned, it was by far the best. We used it a lot in cold weather camper. Of course, we winterized the water system and use a port-a-potty and dumped the port-a-potty. It had a "Polar Package", but never wanted to truly test the waters with it, so I winterized when temps dropped below 30.
By far, it was a very good trailer. Had it 5 years. I think all the Keystone Outback models are good. They are a mid-range camper. They aren't the cheapest, but they aren't the most expensive either. There are other models and brands that exceed the Outback, but price also goes up too.
Others can now start climbing the ladder on this thread. I established the lowest bar here.