Utility
Drivers with frequent child-duty might favor the Avalanche over the HUMMER H2 SUT.
The HUMMER H2 SUT is likely a better choice than the Chevrolet Avalanche when it comes to hauling capacity, especially if you often need to carry a lot of luggage or big beasts.
Towing is markedly more the Chevrolet Avalanche's forte than it is the HUMMER H2 SUT's.
Dimensions
The HUMMER H2 SUT is slightly more ponderous than the Chevrolet Avalanche.
The Chevrolet Avalanche's tank is approximately the same size as the H2 SUT's, though the HUMMER's is a little larger.
The HUMMER H2 SUT and the Chevrolet Avalanche compete for the same parking spaces.
Cost
The Chevrolet Avalanche is tremendously less costly than the HUMMER H2 SUT when it comes to MSRP.
Handling
The HUMMER H2 SUT has quite a bit bigger tires than the Chevrolet. Note that wider tires could improve handling, while smaller tires might provide better handling in deep snow.
With their similar turning circles, the Chevrolet and the HUMMER H2 SUT very likely handle approximately the same into and out of tight spots.
Drivetrain
The Chevrolet Avalanche and the HUMMER H2 SUT have similar-sized engines, with a slight advantage to the HUMMER H2 SUT.
The Avalanche has no lessons to learn as far as pickup from the HUMMER.
Comfort
While the front cabin in the Chevrolet Avalanche offers a bit more head room than the HUMMER, there honestly isn't much of a difference.
The Chevrolet Avalanche is not particularly roomier for your passengers than the HUMMER H2 SUT.
Overview
The basic warranty that comes with the Chevrolet isn't quite as generous as the HUMMER H2 SUT's.
When it comes to warranty against rust, the HUMMER H2 SUT and the Chevrolet have the same coverage.