I gave up my 2001 Toyota Tacoma d-cab for a used Z-71 with 50,000 miles over 3 years ago. For a family of 5, the usability of the back seats is second to none. Where the Toyota 3.4L V6 screamed to tow my boat, the Avalanche handles it like nothing. The flexibility of the mid-gate is terrific. The bed tonneau panels are easy to remove and have remained water tight. The truck has a smooth ride on the road but can still perform off-road. Now I have 87,000 miles and only problem has been the rear power door locks have frozen up and need to be opened manually.
Overall comfort, mid-gate w/ window storage, locking tonneau panels, locking storage along bed with grab handles
Gas mileage of 12.5 - 13 in the city, 17-18 on the highway.