I put 275/70/18 Firestone Destination XTs on my stock rims. They don't have huge sidewall lugs, but the center tread is actual well spaced for offroad grip. I only have about 3,000 miles on them, but so far they are smooth and quiet. They are also MUCH lighter than the Mickey Thompsons, and not much heavier than stock even in the slightly larger size. No problem fitting the spare.
Duratrak - not as good as KO2s for punctures. Slightly better performance on wet road.
KO2 - not as good on wet road but #1 for punctures.
Wildpeaks - my size came in only 4 ply which limited pressure I could pump. I ended up driving on pancake tires and the ride was somewhat mushy. They were good on wet roads.