I love the BF Goodrich All Terrain KO's, for the style they have awesome sidewalls. But they are stiff and the ride will be more like a truck. My wife will not let me put them on the Tahoe.
We went with some Goodyear Wranglers, less aggressive tread than the BF's, softer ride, weaker sidewall, but better than the original equipment tires that came on it.
FWIW, My wife is the primary driver of the Tahoe, I have to commute for work so I drive an Impala. So she gets the input on the Tahoe.