Sequoias are probably as expensive as Expeditions, and may not have as much towing capabilities. I had an Expedition to tow my 26' trailer and loved it, although I would have liked a little longer wheelbase. It had plenty of power both pulling AND breaking, but with a 26' trailer, a little longer would have been nice when towing under windy conditions.
I've not heard a lot of good things about Dodges, so you might want to check around the various RV forums to see what people think.
If I were to get a car for towing something again I'd probably go back to an Expedition. I absolutely loved mine. But I didn't need such a big car once we got the motorhome. I really liked having the whole car "enclosed" (not having a truck bed). It was an absolute dream to drive, and actually had a smaller turning radius than my friend's Sequoia. We used to call the "far back" area my dog Jed's "apartment". It was huge, and he really liked traveling there.
Can you tell I'm a fan of Expeditions?
Laura