My Titan has been very good in the time I have owned it. The gas mileage has been better than expected, especially considering the power the truck has. I have had as good as 23 miles to the gallon on the highway, and usually get at least 20 MPG. The truck rides nice and has a huge amount of space inside. We have used it to take long trips instead of our SUV because it is more comfortable and actually has more interior space.
It's really hard to select one. I would say the power and the interior set up and space.