unless this vehicle spends a LOT of time offroading in a manner where it NEEDS that ground clearance, i wouldnt lift it at all.
lift it and you raise its center of gravity, make it moer likely to roll over.
just a 3" lift is more then most people have any use for, and wont negatively effect its handling, economy, or reliability as much.
and if you ever tow anything, you need the tow hitch or 5th wheel at certain heights to keep the trailer riding properly.
and if you haul loads, how much higher do you want to lift them.....