Utility
The Ford Expedition is likely a better choice than the Acura in terms of hauling capacity, especially if you frequently need to carry a lot of cargo or massive animals.
Drivers with frequent child-duty might favor the Ford Expedition over the Acura.
The Expedition outpulls the Acura RDX by a big margin.
Dimensions
The Ford Expedition is substantially heavier than the Acura.
Your wallet will hurt more every time you fill up the Ford Expedition than the RDX because of its bigger tank.
The Ford Expedition rides lower than the Acura RDX, which is a good thing for its center of gravity and ease of access.
The Acura fits in smaller parking spaces than the Ford Expedition.
The Acura's shorter wheelbase may produce a less-settled highway ride but a sprier feel in daily traffic than the Ford Expedition.
Convenience
You will have to visit your friendly gas station more often with the Acura than with the Ford Expedition.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The Acura RDX is substantially cheaper to get to the dealership than the Ford Expedition.
The Acura RDX will save you money at the pump compared to the Ford.
Regarding fuel economy, the Acura RDX bests the Ford Expedition.
Regarding MSRP, the Ford Expedition costs approximately as much as the Acura RDX (though the Acura RDX is a bit cheaper).
The Ford Expedition will cost you a bunch of money in gas every year compared to the Acura RDX.
Handling
The Ford Expedition has considerably bigger tires than the Acura. Note that bigger tires can look and feel better, while narrower tires could provide better handling in deep snow.
With their similar turning radii, the Acura and the Ford very likely handle approximately the same into and out of tight spots.
Drivetrain
The Ford Expedition's engine is tremendously more sizeable than the RDX's. Remember that more sizeable engines may use more gasoline than smaller ones.
Torque is the force that lets you accelerate quickly, and in this respect, the Ford Expedition is considerably more powerful than the RDX.
The Ford Expedition packs quite a wallop compared to the Acura with respect to torque, which is roughly equivalent to acceleration.
Comfort
Taller drivers will quite a bit enjoy the extra head room in the Ford Expedition's front cabin compared to the Acura RDX.
The Ford Expedition provides more head- and leg-room to your passengers than the Acura does.
Overview
The basic after-sale protection that comes with the Ford Expedition isn't quite as generous as the Acura RDX's.