[onewhippedpuppy]

I'll pile on some of the previous points made.

The Armada is down a few MPG from the competition, in our 2wd model the best I ever saw was 20 on the highway, normal was more like 18. Realistically the best you'll probably see in any full sized SUV is 20 MPG, so I was fine with it.

The new bodystyle Suburban is surprisingly nice to drive, other than being somewhat underpowered (as Eric addressed) it really feels like a smaller SUV. I had a rental for over a week and got 20 MPG on the highway. Conversely I agree with Paul on the limitations as the interior ergonomics are just ok, materials are just ok (but far improved from previous models), interior styling is lacking, and it is missing some of the thoughtful touches of other models. For example, the 2nd row seat flip mechanism for 3rd row access is clunky and difficult, my Armada was a single lever and easy enough for my 5 year old to do alone. It also does not have a fold flat 3rd row seat, less of a problem because it's so big back there.

The Expedition with a 5.4 is terrible, the lack of power borders on unsafe. They also have a spongy ride and LOTS of body roll. I would rate the interior as worse than the GM products. We drove multiple years and examples of the Expedition, I wanted to like it because they are one of the cheaper options. We didn't test drive the Navigator because my wife and I hated the bling styling, if you're interested in them do some research on the air suspension, in the older models it was a common and expensive failure.

I did quite a few miles in a rental Durango (new bodystyle) and found it to be generally pleasant. Good ride quality, hugely improved interior, and overall nice to drive. The 3rd row seats are pretty small, definitely not adult sized.