The grabbers are close to the BFG AT KO, lots of people run them around here as the price point is better on them. Never heard a bad thing about them. Lots around here love them in the winter. Same basic off road performance as the AT KO's, pretty decent in everything except mud, although I have a buddy who swears they do better in mud than BFG at Ko's.
No input on the KM2's, Don't know anyone that runs them.
"Time you enjoy wasting, was not wasted"- John Lennon
"The Jeep is a manly device. And a womanly device. An American device. It’s a fitting instrument to transport the free people of a free nation with the respect to which we are entitled and the dignity that we deserve. Okay, we’re a little crazy to have a Jeep for a daily driver. But if we go off our meds, we might wind up in a Prius"-P.J.O'rourke