I'm sure you will be seeing this comment or a version of this comment repeatedly below. The comment is this: "Go with the floor plan you prefer first, and then consider the chassis."
That's because Freightliner or Spartan, you will be getting a great chassis with any of those models. They are all at the top of their price points so the chassis will be good. Consider this, the chassis consists of the frame, engine, tires, suspension, axles, steering, air system and brakes. Many of the components used will be the same whether you get Spartan or Freightliner.
I have the Spartan K3 which is used by both Entegra and Newmar. The K3 chassis is the only box truss chassis that I know of. As far as I know, Freightliner doesn't make anything like it. The K3 box truss chassis is so rigid that the manufacturers don't need to straighten it upon arrival at the MH manufacturer. It allows for tighter suspension, more resistance to twisting, and more space in the storage compartments.
I went to the Spartan training last month and enjoyed the class and got a tour of the factory. It is a first class chassis with top components used throughout. I highly recommend it. But either way, I think you'll be happy.
