You are correct. H2’s 10 mpg on a good day. My friend couldn’t back his 3500lb boat up his driveway with a 6 liter hummer because the thing is so heavy to start with. Had to put it in 4wd. His old suburban did it just fine.
I think people confuse the Hummer with the Humvee that the military uses. GM doesn’t manufacture those, and any comparison between the two is purely accidental.
The H2 is built on a Tahoe platform and the H3 is built on the Trailblazer platform; of the four, I think the Tahoe and Trailblazer are more utilitarian.
On a duck hunt 2 years ago when one of the hunters showed up in a Hummer H2, the guide said, “Hey, this ain’t ‘Pimp My Ride.’ We’re duck hunting.”