Kenetrek vs Lowa is truly a ford vs chevy, or you could say BMW vs Mercedes.
I have a pair of Lowa sheep hunter boots (huge improvement to my feet over the Meindl) and I recently ordered a pair of the Kenetrek 1000g mountain extreme.
For rock or steep angle hunting or for those who have weak ankles, I would recommend the Lowas with all things being equal.
While still providing more than adequate support but providing a more "soft" feel, the Kenetrek should be number one of the list for general hiking/hunting.
My 2 cents