Sorry, I haven't seen any of these in person to comment. However, I will say that traveling with your wife and a large-ish dog, I would want a fairly large floor area. I would also look for something that has vertical doors -- that is, they don't slope inward, which lets in rain when they are opened to get in and out.

One trick I used when hiking with the family and a small tent was to carry a 5x8 foot silnylon tarp, which I rigged over the door of the tent. It makes a great porch for cooking, hanging out, etc., and it let us keep the door open for ventilation even in the rain.