Old thread, I know, but...
I go to the Daniel Boone National Forest just about everytime that I go anywhere, and I would rate it at a 3/5 on the scenic parts, 3-31/2 out of 5 for the trails, as I have run them so many times that I can tell you where you are over the CB, which way/where to trun to get to a particular spot, and roughly how long it will take you to do a certain trail/obstacle depending on your vehicles build, and maybe your driving, if I have seen it. I still love to go there, regardless.