Handling
The HUMMER H3 and the Ford have about comparable tires.
With their comparable turning radii, the Ford Explorer and the HUMMER H3 quite certainly handle approximately the same into and out of tight spots.
Drivetrain
The HUMMER H3's engine is significantly smaller than the Ford's. Keep in mind that smaller engines can be stressed more; on the other hand, smaller engines are often cheaper to fix.
Torque is roughly equivalent to acceleration, and in this respect, the Ford Explorer is quite a bit more powerful than the H3.
Torque equals pickup, and the Ford will have picked up and gone by the time the HUMMER H3 finally gets moving.
Utility
The Ford Explorer's more massive trunk will accommodate more sizeable things than the H3.
The Ford Explorer will doubtless prove more practical than the HUMMER H3 for those of you with frequent kid-cargo.
The Ford Explorer is likely a better choice than the HUMMER H3 regarding transporting cargo, especially if you frequently need to carry a lot of gear or large pets.
Towing is significantly more the Ford Explorer's forte than it is the HUMMER H3's.
Convenience
You'll very likely take the HUMMER H3 for a fill-up roughly as often as the Ford Explorer.
Comfort
While the front cabin in the HUMMER H3 offers a bit more head room than the Ford Explorer, there frankly isn't much of a difference.
While the rear of the Ford Explorer offers a bit more head- and leg-room than the HUMMER H3, there honestly isn't much of a difference.
Dimensions
The HUMMER is a bit heavier than the Ford Explorer.
The Ford Explorer's tank is approximately the same size as the HUMMER's, though the HUMMER H3's is a bit bigger.
The H3 and the Ford Explorer compete for the same parking spaces.
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 H3 to the dealership as the Ford Explorer.
The Ford Explorer won't save you much money at the pump compared to the HUMMER H3.
The HUMMER H3 isn't much less expensive than the Ford Explorer with respect to MSRP.
Overview
The basic warranty that comes with the Ford Explorer isn't quite as generous as the HUMMER H3's.