For the record, I really despise Hummer as a brand (mainly for the level of douchebaggery it greated) . However, I will say that the H3T is a decent truck, with a better interior than the Canyon/Colorado stablemates and the option of a V8. It is ironically, the only model that would do rather well off road.(minus the mil spec H1)
The Jeep is a legitimate off roader. Period.