Most new SUV's have IRS. It does ride and handle better. But you also get pressed in sealed unit wheel bearings, struts to break, differential seals that like to leak, more cv joints to play with etc. Compared to a truck (or older SUV) with a solid rear axle that you change the oil in every 100k if you think about it and might get a little spring sag with age. Trucks seem to hold their value better too. I dare say most full four door half tons probably have more second row legroom than any SUV. They are kind of ridiculous really... But if you need a really smooth ride, the third row seating and/or climate controlled cargo space for pets or candy bars or whatever a truck won't work.