Looking forward to your results and opinion.
So far, the Expedition got better gas mileage with the EcoBoost.... at least on the highway. Not sure about around town. It also had more room in the third row. The Sequoia "feels" smaller, but I'm not sure that it is.
They feel pretty equal in terms of power. I haven't really put this one to the test yet, but I'd say it is no less powerful than the Expedition (at least in terms of getting up to speed).
I still think the designers gave up on the rear. I like the look of the front and sides, but the back looks like a lifted Sienna.
I'm still learning the infotainment system. It's not as intuitive as I would think, but that might just be a learning curve. I vaguely remember it taking a bit to learn the ford system. I like the wireless carplay/android auto.