Utility
The GMC Acadia will definitely prove handier than the Commander for those of you with frequent kid-cargo.
The Commander outpulls the GMC Acadia by a large margin.
Dimensions
The Jeep's tank is roughly the same size as the GMC's, though the Acadia's is a little larger.
The Jeep Commander and the GMC Acadia compete for the same parking spaces.
The Jeep Commander's shorter wheelbase will likely give a nimbler feel in daily traffic. However, the GMC is likely to have a smoother, more stable ride.
Convenience
The Commander's fuel tank will need to be replenished more often than the unit in the GMC Acadia.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs approximately the same to get the GMC Acadia to the dealership as the Jeep.
With respect to gas mileage, the GMC Acadia bests the Jeep.
Producing a precise gas mileage evaluation is so tough that some think not even the federal government can do it, but it looks as though the GMC Acadia is the winner when it comes to fuel economy.
With respect to MSRP, the Acadia doesn't cost much less than the Commander.
Handling
With their comparable turning circles, the Jeep Commander and the GMC quite certainly handle about the same into and out of tight spots.
Drivetrain
The Commander's engine isn't much bigger than the GMC Acadia's.
The Jeep Commander could learn a lesson or two from the GMC Acadia regarding torque.
Torque is roughly equivalent to acceleration, and in this respect, the GMC is considerably more powerful than the Jeep Commander.
Comfort
Taller drivers will substantially enjoy the extra head room in the Commander's front cabin compared to the GMC.
While the rear of the Jeep provides a bit more head- and leg-room than the GMC Acadia, there frankly isn't much of a difference.
Warranty
The GMC and the Jeep Commander have the same basic warranty.