I think Spartan is the preferred chassis for most upscale DP owners but within the last couple of years Freightliner has added upgrades and improvements that would make them comparable. My neighbor went from a Spartan to a Freightliner chassis when he upgraded his Newmar to a 2015 model and was happy with the Freightliner. At that time Newmar was already adding certain upgrades/extras to the Freightliner chassis.