Ok. I am from SWPA and just bought a camp this Spring in Washington County Ohio that borders WNF. Here are my current thoughts in no particular order.
1. There are less deer in Washington County Ohio than there is in SWPA.
2. Odds of killing a bigger buck is probably better in Ohio than SWPA.
3. WNF does give you the benefit of hunting alot of ground. Got tired of deer hunting over the weekend, so Sunday Morning my son and I went for a walk squirrel hunting and covered a bunch of "new ground"
4. Advantage of property bordering national forest is you know that it will always be national forest and won't be a turd neighbor. You can own hundreds of acres and 1 or 2 turd neighbors can turn it into a miserable place to hunt. We only have 13 acres but it borders WNF on 2 sides.
5. Don't get too hung up on current deer numbers in an area. In my experience hunting particular tracts over the years is deer numbers on a local level will fluctuate over time. I would find a piece of property that you like. You can improve the hunting on it over time.
6. Trespassing isn't as big of an issue in Ohio (from my experience) as it is in PA. I have never seen anyone or gotten any trail cam pics of trespassers on our 13 acres of property in Ohio. Maybe I am lucky, but I think Ohio tougher laws help.
7. Hunting in WNF is totally different hunting than SWPA. It is big woods at least where I am. Deer are less tolerant of being disturbed than where I am at in PA. That being said I am learning and I am going to be making several changes and have several new stand locations for next year.