Bob, we know of people who have had both and the Escape
tows better because it is narrower, and is known for tracking well. Our Escape
is only 3" wider on each side than our TV. A Bigfoot
is not only wider but has a much larger frontal area which of course catches the wind more and decreases MPG. That is before figuring in the considerably higher weight
Of course, there are those who want that extra interior area and don't mind paying the higher prices or getting an appropriate tow vehicle. The Bigfoot
has a very large front window also which may be appealing. It depends on how important these factors are to you, including a dry bath. Ease of towing is a big deal to us.