How many miles will a set of Nitto Terra Grapplers get before they need replaced?

I'm needing new tires on my 200 S-10 ZR2. I am running 35X12.5s, & want a good-wearing All-terrain tire that does well on & off-road. How do the Nitto Terra Grapplers stack-up compared to the BFG KOs &/or the Good Year Silent-Armors? Any other recommendations?