The Blue Ox looks to have an easier hardware install but shows the full bottom grill getting cut out. The Roadmaster EZ baseplate with removable tabs, looks least noticeable on the last model liberty because it shows just cutting the 2 openings a little larger. My visual choice in non-tow mode here would be the Roadmaster. However I'd most likely pick Blue Ox for easiest to use and install.
For my wrangler, it was Blue Ox that required the least cutting.
I was in my local CW the other day and they only carry the RoadMaster line. They have huge flat black brackets.
Those huge flat black brackets come off when not in use...
This is what the Roadmaster system looks like when not in use.
(2 small square receivers tucked under the bumper. Silver metal in the center is the brake away sensor.)