Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. The HUMMER H3T is considerably cheaper to get to the dealership than the F-450.
In terms of MSRP, the Ford costs significantly more than the HUMMER H3T.
Utility
The F-450 is a better choice than the H3T when it comes to hauling capacity, especially if you often need to carry a lot of suitcases or pets.
The Ford F-450 will quite certainly prove friendlier than the HUMMER H3T for those of you with frequent child-cargo.
The Ford F-450 outpulls the HUMMER H3T by a large margin.
Comfort
While the front cabin in the Ford F-450 offers a bit more head room than the HUMMER H3T, there frankly isn't much of a difference.
The ampler interior dimensions of the Ford F-450 make it significantly more spacious for your passengers than the HUMMER H3T.
Dimensions
The F-450 is tremendously heavier than the HUMMER H3T.
Your wallet will hurt more every time you fill up the F-450 than the HUMMER H3T because of its bigger tank.
The HUMMER H3T fits in smaller parking spaces than the Ford F-450.
The HUMMER's shorter wheelbase may produce a less-settled highway ride but a more agile feel in daily traffic than the Ford F-450.
Performance
With that kind of horsepower, both the Ford F-450 and the HUMMER H3T are genuine sportscars.
Handling
With their similar turning radii, the H3T and the Ford F-450 most definitely handle about the same into and out of tight spots.
Drivetrain
The F-450 has a more massive engine than the H3T. Note that smaller engines typically get better gas mileage, but smaller engines can be stressed more.
The HUMMER H3T could learn a lesson or two from the F-450 as far as torque.
Warranty
The basic after-sale protection that comes with the Ford isn't quite as generous as the HUMMER's.