I have been on much of that stretch, with the exception of the last few miles to 80. (Its possible I was on the section labeled "ridge road" near 80 on a different trip. If indeed this was the same road, it was one of the strangest terrain section I have ever seen in PA. Table top flat road on top of a hill, not sure it was paved everywhere.
I am afraid 144 can not compete with the other two roads you have mentioned. It will take you longer, and although its not too steep, its a slow valley road in many places.
Let me know if you decided to try, after my rave review