I currently have 3 stacks of pecan wood and love it. I also have oak and hickory, but after I use those stacks, I'll be using pecan exclusively. It dries well, burns great, smells wonderful and puts out perfect Q.
Everything can be smoked (successfully) with pecan!
Lang 100 Deluxe trailer rig (60" smoker w/warming box and 40" chargrill)