The Roadmaster baseplate is easier to install as the lateral arm is external to the car. In my particular instance, the Blue Ox baseplate was harder to install, but adds less to the total weight of the car (part of the baseplate actually replaces part of the car frame. Because of that, while I have had Roadmaster baseplates for over 20 years and have had excellent service out of them, I slightly now prefer the Blue Ox because of the less weight on the car. If I were still installing them myself, then I'm not quite sure as on our MINI Cooper, the Roadmaster would have been definitely easier to install.
My situation was somewhat affected by the fact that I have/had a Roadmaster towbar. However at nominal cost, you can get BLue Ox "ends" that replace the Roadmaster "ends" on the towbar. I have been very pleased with the installation that I now have.
Ed Headington
